Saddleback Math Covers
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MATH COMPUTATION SKILLS & STRATEGIES Every book in the Math Computati...
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Saddleback Math Covers
10/22/06
6:24 PM
Page 1
MATH COMPUTATION SKILLS & STRATEGIES Every book in the Math Computation Skills and Strategies series contains over 100 reproducible pages.These highinterest activities combine computation practice with strategy instruction. Featuring a Scope and Sequence chart, the books allow educators to supplement their math lessons with the extra math practice all students need. In addition, periodic reviews allow for reinforcement and assessment of skills.
H I G H - I N T E R E S T M AT H C O M P U TAT I O N S K I L L S & S T R AT E G I E S
HIGH-INTEREST
• LEVEL 3
The books are grade specific, but they were created with students of all ages in mind. Each book features ready-to-use pages with instructional tips at the beginning of each lesson. Math Computation Skills and Strategies reproducible books are the perfect choice for educators.
HIGH-INTEREST
MATH COMPUTATION SKILLS & STRATEGIES Operations Fractions and Decimals Whole Numbers Perimeter and Area Regrouping
Three Watson • Irvine, CA 92618-2767 • 888-SDL-BACK • www.sdlback.com
S A D D L E B A C K E D U C AT I O N A L P U B L I S H I N G
Saddleback E-Book
Solving Word Problems Money Measurement
LEVEL
3
100 plus+ REPRODUCIBLE ACTIVITIES
MATH COMPUTATION SKILLS & STRATEGIES
LEVEL
3
ISBN 1-56254-966-9 Copyright © 2006 by Saddleback Educational Publishing. All rights reserved. No part of this book may be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system without written permission of the publisher, with the following exception. Pages labeled Saddleback Educational Publishing ©2006 are intended for reproduction. Saddleback Educational Publishing grants to individual purchasers of this book the right to make sufficient copies of reproducible pages for use by all students of a single teacher.This permission is limited to an individual teacher and does not apply to entire schools or school systems. Printed in the United States of America
Table of Contents Page
Lesson
5 . . . . . . . . . Introduction Unit 1 . . . Numbers and Number Sense 6 . . . . . . . . . Write Whole Numbers 7 . . . . . . . . . Understand Place Value 8 . . . . . . . . . Read Forms of Numbers 9 . . . . . . . . . Order and Compare Whole Numbers 10 . . . . . . . . Round Numbers to the Nearest Ten 11 . . . . . . . . Round Numbers 12 . . . . . . . . Whole Number Practice 13 . . . . . . . . Recognize and Name Fractions 14 . . . . . . . . Compare Fractions 15 . . . . . . . . Use Fractions Describing Part of a Group 16 . . . . . . . . Compare Fractions 17 . . . . . . . . Understand Decimals 18 . . . . . . . . Write Decimals 19 . . . . . . . . Compare Decimals and Fractions 20 . . . . . . . . Fraction Practice 21 . . . . . . . . Review Number Sense 22 . . . . . . . . Review Number Sense Unit 2 . . . Addition and Subtraction 23 . . . . . . . . Understand Addition 24 . . . . . . . . Understand Properties of Addition 25 . . . . . . . . Add Fast Facts 26 . . . . . . . . Practice Addition 27 . . . . . . . . Practice Addition 28 . . . . . . . . Add Numbers to 2 Digits 29 . . . . . . . . Add Numbers to 3 Digits 30 . . . . . . . . Add Numbers to 3 Digits 31 . . . . . . . . Add Numbers to 4 Digits 32 . . . . . . . . Add Numbers to 4 Digits 33 . . . . . . . . Add Numbers to 4 Digits 34 . . . . . . . . Practice Mixed Addition 35 . . . . . . . . Practice Mixed Addition 36 . . . . . . . . Understand Subtraction 37 . . . . . . . . Subtract Fast Facts 38 . . . . . . . . Practice Subtraction 39 . . . . . . . . Practice Subtraction 40 . . . . . . . . Recognize Fact Families 41 . . . . . . . . Check Addition and Subtraction 42 . . . . . . . . Subtract Numbers to 2 Digits 43 . . . . . . . . Subtract Numbers to 3 Digits 44 . . . . . . . . Subtract Numbers to 3 Digits 45 . . . . . . . . Subtract Numbers to 4 Digits 46 . . . . . . . . Subtract Numbers to 4 Digits 47 . . . . . . . . Subtract Numbers to 4 Digits 48 . . . . . . . . Practice Mixed Subtraction 49 . . . . . . . . Practice Mixed Subtraction
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
. . . . . . . . Add Three Numbers . . . . . . . . Solve Word Problems . . . . . . . . Solve Word Problems . . . . . . . . Review Addition and Subtraction . . . . . . . . Review Addition and Subtraction . . . . . . . . Find Equivalent Fractions . . . . . . . . Reduce Fractions . . . . . . . . Add Fractions . . . . . . . . Add Fractions . . . . . . . . Subtract Fractions . . . . . . . . Subtract Fractions . . . . . . . . Solve Word Problems . . . . . . . . Solve Word Problems . . . . . . . . Review Fractions . . . . . . . . Review Fraction
Unit 3 . . . .Multiplication and Division 65 . . . . . . . . Understand Multiplication 66 . . . . . . . . Multiply by 0 and 1 67 . . . . . . . . Multiply Fast Facts 68 . . . . . . . . Multiply Fast Facts 69 . . . . . . . . Multiply by 2, 5, and 10 70 . . . . . . . . Multiply 1-Digit Numbers 71 . . . . . . . . Understand Properties of Multiplication 72 . . . . . . . . Multiply 2 Digits by 1 Digit 73 . . . . . . . . Multiply 2 Digits by 1 Digit 74 . . . . . . . . Multiply 3 Digits by 1 Digit 75 . . . . . . . . Multiply 3 Digits by 1 Digit 76 . . . . . . . . Multiply 4 Digits by 1 Digit 77 . . . . . . . . Multiply 4 Digits by 1 Digit 78 . . . . . . . . Practice Multiplication 79 . . . . . . . . Practice Multiplication 80 . . . . . . . . Understand Division 81 . . . . . . . . Divide Fast Facts 82 . . . . . . . . Divide Fast Facts 83 . . . . . . . . Divide by 2, 5, and 10 84 . . . . . . . . Check Multiplication and Division 85 . . . . . . . . Divide 2 Digits by 1 Digit 86 . . . . . . . . Divide 2 Digits by 1 Digit 87 . . . . . . . . Divide 3 Digits by 1 Digit 88 . . . . . . . . Divide 3 Digits by 1 Digit 89 . . . . . . . . Divide 4 Digits by 1 Digit 90 . . . . . . . . Divide 4 Digits by 1 Digit 91 . . . . . . . . Practice Mixed Division 92 . . . . . . . . Practice Mixed Division 93 . . . . . . . . Solve Word Problems 94 . . . . . . . . Solve Word Problems 95 . . . . . . . . Review Multiplication and Division 96 . . . . . . . . Review Multiplication and Division
Table of Contents Unit 4 . . . . Operations with Decimals 97 . . . . . . . . Count and Write Money 98 . . . . . . . . Count and Write Money 99 . . . . . . . . Add and Subtract Money 100 . . . . . . . Add and Subtract Money 101 . . . . . . . Multiply and Divide Money 102 . . . . . . . Multiply and Divide Money 103 . . . . . . . Solve Word Problems 104 . . . . . . . Solve Word Problems 105 . . . . . . . Review Money 106 . . . . . . . Review Money Unit 5 . . . . Equations 107 . . . . . . . Write Number Sentences 108 . . . . . . . Describe Patterns 109 . . . . . . . Complete Patterns 110 . . . . . . . Write Equations 111 . . . . . . . Solve Equations 112 . . . . . . . Solve Equations 113 . . . . . . . Write Equations 114 . . . . . . . Review Equations Unit 6 . . . . Measurement 115 . . . . . . . Understand Time 116 . . . . . . . Read Time 117 . . . . . . . Find Time Intervals 118 . . . . . . . Find Time Intervals 119 . . . . . . . Add Intervals of Time 120 . . . . . . . Duration 121 . . . . . . . Find Lengths (Customary) 122 . . . . . . . Find Lengths (Customary) 123 . . . . . . . Convert Lengths 124 . . . . . . . Add and Convert Lengths 125 . . . . . . . Find Lengths (Metric) 126 . . . . . . . Find Lengths (Metric) 127 . . . . . . . Convert Lengths 128 . . . . . . . Add and Convert Lengths 129 . . . . . . . Understand Perimeter 130 . . . . . . . Find Perimeters 131 . . . . . . . Understand Area 132 . . . . . . . Find Areas 133 . . . . . . . Solve Word Problems 134 . . . . . . . Solve Word Problems
135 . . . . . . . Review Measurements 136 . . . . . . . Review Measurements 137 138 139 140 141 142 143 144
. . . . . . . Scope and Sequence . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key . . . . . . . Answer Key
About This Series This series was created by Saddleback Educational Publishing to provide extensive math practice as a supplement to in-class instruction. Math Computation Skills and Strategies can easily be integrated into math curricula to reinforce basic skills.The lessons focus on practice, with up to 70 items a page. In addition, the lessons are designed to challenge students as their skills grow stronger. As the students progress through the individual lessons, the degree of difficulty increases. Closely adhering to state standards, this series provides grade-level appropriate lessons that are approachable for students at a range of abilities. Review lessons are interspersed throughout the book to allow students to reinforce their skills. Furthermore, the Scope and Sequence chart at the back of the book will help you choose lessons that are applicable to your curriculum.This series covers a range of topics, allowing students to build skills in multiple areas. Additionally, the lessons provide a variety of approaches, including word problems that emulate real-life situations. Each book is designed to challenge students who are learning skills at the corresponding grade level. However, the lessons were created not just for younger children, but for students of all ages. Saddleback Educational Publishing believes in allowing students to strengthen their skills with fun and exciting practice lessons.We hope you enjoy using this series to supplement class instruction and help students gain skills for proficiency in math computation.
Write Whole Numbers To write whole numbers, just figure out how many thousands, hundreds, tens, and ones there are.
Thousands
Hundreds
Tens
Ones
1
2
4
9
= 1,249
Directions: Write the number.
1.
=
2.
=
3.
=
4.
=
Directions: Write the number. a
b
5. 7 hundreds, 3 tens, 5 ones =
9 hundreds, 4 tens, 8 ones =
6. 3 hundreds, 9 tens, 9 ones =
4 hundreds, 6 ones =
7. 4,000 + 200 + 10 + 4 =
8 hundreds, 8 tens =
8. 5,000 + 600 + 8 =
9 thousands, 2 tens =
9. forty-eight =
one hundred twenty-five =
10. nine hundred forty-one =
five thousand twenty-three =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 6
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Place Value
th ou sa hu nds nd te red ns s on es
Understanding place value in whole numbers is easy. The ones place is on the right.
6,437 The 4 is in the hundreds place. Directions: Answer the question or complete the sentence.
9,685 1. Which digit is in the ones place? 2. Which digit is in the thousands place?
71,246 3. How many thousands are there? 4. How many tens are there?
854 5. The 5 is in the 6. The 4 is in the
place. place.
2,021 7. There is a 2 in the 8. How many hundreds are there?
place and in the
place.
692 9. How many ones are there? 10. The 9 is in the
place.
42,775 11. How many thousands are there? _____ place and in the 12. There is a 7 in the Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
place. Date
7
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Read Forms of Numbers You can write a number in lots of different ways.
Words: Nine thousand one hundred thirty-one Standard form: 9,131 Expanded form: 9,000 + 100 + 30 + 1
Directions: Write the number in standard form. a
b
1. 400 + 50 + 2 =
7,000 + 600 + 20 + 9 =
2. three thousand three =
2,000 + 50 + 5 =
3. 4,000 + 200 + 10 + 3 =
eight hundred twenty-five =
4. 600 + 40 +1 =
1,000 + 50 =
5. two thousand three hundred =
8,000 + 500 + 20 =
Directions: Write the number in expanded form. 6. 2,491 = 7. nine hundred five = 8. twenty-six = 9. 9,204 = 10. 2,212 = 11. 4,001 = 12. 599 =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 8
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Order and Compare Whole Numbers When you order numbers, compare them to figure out which is greater.
853 > 421
99 < 203
> means greater than
8 + 3 = 11
< means less than
= means equal to
Directions: Complete the number sentence using =, <, or >. a
1.
2,105
2.
c
b
d
23
351
951
20+3
23
19
9
423
419
28
61
125
135
104
99
3.
18
10+7
484
448
305
311
1,102
4.
59
60
2,002
6+6
11
85
94
5.
725
635
7+8
624
642
99
98
6.
5,409
9,201
989
68
60+8
6,001
1,999 15 2,555
2,556
112
Directions: Complete. Use any number that makes the sentence true. a
c
b
d
7.
85 > ____
912 < ____
9 + 3 = ____
49 > _____
8.
600 > _____
8 + 7 < _____
203 < _____
89 < _____
9.
29 < _____
108 > _____
64 > _____
55 < _____
10.
65 < _____
14 = _____
101> _____
340 > _____
11.
12 + 2 > _____
850 > _____
79 < _____
9 + 6 < _____
12.
999 < _____
8 + 8 = _____
250 < _____
435 > _____
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 9
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Round Numbers to the Nearest Ten Rounding to the nearest ten is easy. Just look at the number in the ones place. If it’s less than 5, round down. If it’s greater than or equal to 5, round up!
80
81
82
83
84
85
86
87
88
89
90
10 11 12 13 14 15 16 17 18 19 15 is between 10 and 20. In 15, the digit in the ones place is equal to 5, so it rounds up to 20.
20
84 is between 80 and 90. In 84, the digit in the ones place is less than 5, so it rounds down to 80.
Directions: Complete the sentence. Round to the nearest ten. 1. 29 is between
and
and rounds to
.
2. 45 is between
and
and rounds to
.
3. 63 is between
and
and rounds to
.
4. 142 is between
and
and rounds to
.
5. 756 is between
and
and rounds to
.
Directions: Round to the nearest ten. a
c
b
d
6.
48
63
99
29
7.
19
24
82
55
8.
67
31
76
93
9.
124
271
387
452
10.
356
523
896
974
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 10
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Round Numbers When you round, just remember to look at the digit in the place to the right of the place to which you are rounding.
Round to the nearest thousand. Round to the nearest hundred.
4, 391 1,963
4,000 2, 000
Directions: Round to the nearest hundred. a
c
b
d
1.
843
1,291
6,920
481
2.
109
9,255
631
5,261
3.
1,962
819
4,925
777
4.
276
5,555
800
2,541
5.
1,200
899
6,729
3,270
6.
4,253
963
346
1,928
Directions: Complete the sentence. 7. 2,180 rounded to the nearest thousand is 8. 13,408 rounded to the nearest ten is 9. 650 rounded to the nearest hundred is 10. 990 rounded to the nearest hundred is 11. 8,077 rounded to the nearest thousand is 12. 6,455 rounded to the nearest ten is
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 11
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Whole Number Practice Let’s practice some of our skills!
Directions: Complete the chart.
Word Form
Standard Form
1.
Expanded
732
2.
Nine hundred five
3.
200 + 30 + 9
4.
Two thousand fifty-six
Directions: Complete the sentence.
14,983 5. There are 6.
hundreds. is the number in the tens place.
7. There are 4
.
8. 3 is the number in the
place.
Directions: Order the numbers from least to greatest. b
a
9. 432; 455; 193
261; 162; 621
10. 1,205; 905; 1,052
432; 623; 433
11. 699; 701; 679
271; 143; 1,003
12. 5,668; 6,212; 7,012
999; 909; 990
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 12
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Recognize and Name Fractions In a fraction, the top number is called the numerator, and the bottom number is called the denominator.
5 8
There are 5 shaded sections. 5 is the numerator. There are 8 sections in all. 8 is the denominator.
Directions: Write the fraction that names the shaded part. a
c
b
1.
2.
Directions: Shade the part of the figure indicated by the fraction. a
c
b
3.
1 4
6 7
4.
2 3
5 8
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
5 6
4 9
Date 13
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Compare Fractions When you compare fractions that have the same denominator, just compare the numerators.
1 3 1 31 3 < < < 8 8 8 88 8
Remember: < means less than and > means greater than.
Directions: Compare the fractions shown by the shaded parts. a
c
b
1.
1 3
2 1 3 3
2 3
1 2
2 1 2 2
2 2
3 4
5 8
7 5 8 8
7 8
5 7
4 5 7 7
4 7
7 10
1 3 4 4
1 4
2.
75 10 10
5 10
Directions: Write the fractions that name the shaded parts. Compare. a
b
c
3.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 14
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Use Fractions Describing Part of a Group We use fractions to describe a part of a group.
7 of of the the flowers flowers are are white not shaded. 10
Directions: Write a fraction for the part that is not shaded. 1.
2.
3.
4.
Directions: Write a fraction. 5.
What fraction of the balls is white or striped?
6.
What fraction of the sundaes has a cherry or chocolate sauce?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 15
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Compare Fractions When fractions have different denominators, a picture can help you compare them.
2 4 2 42 4 > > > 3 9 3 93 9 2 2 2 4 4 4 Remember: < means than anddenominator >the means than. Evenless though Even though Even the though denominator thegreater denominator is smaller, is smaller, is issmaller, greater is greater than is greater than . than . . 3 3 3 9 9 9 Directions: Compare the fractions shown by the shaded parts. a
c
b
1.
1 2
1 1 5 2
1 5
5 6
2 5 3 6
2 3
2 5
2 2 4 5
2 4
1 3
2 1 9 3
2 9
3 8
3 3 4 8
3 4
9 10
49 10 5
4 5
2.
Directions: Write the fractions shown by the shaded parts, then compare them. a
b
c
3.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 16
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Decimals Decimals are like fractions, but they’re written in a different way.
=
6 = 0.6 = six tenths 10
Directions: Write a decimal for the shaded part of each picture. a
c
b
1. =
=
=
=
=
=
2.
Directions: Rewrite in decimal form. a
b
c
3.
5 = _____ 10
two tenths = _____
9 = _____ 10
4.
4 = _____ 10
1 = _____ 10
seven tenths = _____
5.
six tenths = _____
3 = _____ 10
four tenths = _____
6.
7 = _____ 10
one tenth = _____
10 = _____ 10
7.
eight tenths = _____
ten tenths = _____
2 = _____ 10
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 17
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Write Decimals Writing decimals is easy.The decimal place to the right of the tenths is called hundredths.
=
52 = 0.52 = fifty - two hundredths 100
Directions: Write a decimal for the shaded part. a
b
c
1.
2.
Directions: Shade the part indicated by the decimal. a
b
c
3. 0.41
0.60
0.13
0.33
0.09
0.90
4.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 18
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Compare Decimals and Fractions When you convert a fraction into a decimal, first you have to turn the denominator into 10 or 100.
=
1 5 = = 0.5 2 10
Directions: Write a decimal for each picture. a
b
1. =
2 = = _____ 5 10
=
4 = = _____ 5 10
2. =
3 = = _____ 4 100
=
1 = = _____ 5 10
Directions: Shade and compare. b
a
3.
0.5
0.52
0.69
0.7
0.08
0.8
0.44
0.4
4.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 19
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Fraction Practice Here’s some practice to sharpen those skills!
Directions: Complete. a
b
1.
2.
3.
0.4
0.4
0.5
0.5
4. Martha has 10 marbles and 4 of them are blue.Write a decimal for the part that is NOT blue. 5. Kate saw 9 cars in the parking lot.Two of them were pink and four were yellow. Write the fraction that describes how many cars were either pink or yellow. Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 20
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Number Sense Time for a quiz! Here we go!
Directions: Complete the number sentence with <, >, or =. a
1. 2. 3. 4. 5.
695 695 33 44
6,6950 , 950 11 44
7 +5 7 +5 1212 0.54 0.54 0.45 0.45 99 1010
c
b
0.9 0.9
11 33
22 33
890 890
0.10 0.10 0.10.1 22 1010
0.30.3
11 99
11 88
d
910 910
0.17 0.17 0.20.2 55 66
55 88
499 499 501 501 0.8 0.8
9 +9 + 9 9 1616
7777 100 100
0.50.5 0.60.6 8, 312 8, 312 8, 321 8, 321 0.71 0.71 0.60.6 66 77
44 55
4, 444 4, 444 5, 000 5, 000
Directions: Rewrite the number in a new form. a
€€ € €€
b
6.
45 in expanded form _____
4 in decimal form _____ 10
7.
0.53 in fraction form _____
8, 359 in expanded form _____
8.
0.9 in word form _____
eight hundred six in standard form _____
9.
two thirds in fraction form _____
90 in decimal form _____ 100
400 + 80 +1 in standard form _____
0.87 in fraction form _____
10.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 21
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Number Sense Keep up the great work. You’re almost there!
Directions: Order the numbers from least to greatest. a
b
1.
168; 68; 1, 068 _____________
1 1 1 ; ; _____________ 6 3 4
2.
0.2; 0.4; 0.9 _____________
9, 008; 10, 001; 8, 999 _____________
3.
4, 873; 6, 214; 3, 979 _____________ 0.98; 0.89; 0.9 _____________
4.
4 29 ; 0.34; _____________ 10 100
5. 6.
8 9 6 ; ; _____________ 9 10 7 7 77 70 ; ; _____________ 12, 230; 1, 230; 123 _____________ 100 100 100 5 5 5 ; ; _____________ 0.09; 0.4; 0.21 _____________ 8 5 6
Directions: Answer the questions. 7. What is 7,926 rounded to the nearest hundred? 8. In 12,456, which digit is in the thousands place? 9. Becky ate 7 of the 8 gumdrops she had.What fraction is left? 10. What is 8,455 rounded to the nearest thousand? 11. In 0.57, how many hundredths are there? 12. Eduardo had a box of 10 crayons and 6 are left. In decimal form, how many are left? 13. In which places are there 9s in 19,149? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 22
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Addition Addition is all about putting two or more groups of things into one group.
How many pieces of fruit in all? 0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
Use a number line. 9 + 7 = 16 Directions: Add. Use the number line to help you. a
b
c
d
1.
9+ 2 =
7+ 6 =
5+ 3 =
8+ 4 =
2.
4+ 6 =
5+ 7 =
9 +1=
2+ 3 =
3.
7+ 7 =
9+ 3 =
4+ 2 =
6+ 0 =
4.
8 +1=
3+ 4 =
6+ 6 =
7+5=
5.
6+ 5 =
2+ 9 =
3+ 3 =
4+ 8 =
6.
9+ 0 =
5+ 5 =
6 +1=
7+ 2 =
7.
3 +1=
9+ 8 =
9+ 5 =
6+ 9 =
8.
5 +1=
9+ 9 =
7+ 8 =
4+ 4 =
9.
4+ 7 =
6+ 2 =
8+ 8 =
3+ 0 =
10.
7 +1=
8+ 0 =
2+ 8 =
7+ 9 =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 23
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Properties of Addition Understanding the properties of addition will help you succeed.
The Identity Property says that you can add zero to any number and get that number.
(2 + 4) + 6
2 + (4 + 6)
{
The Associative Property says that you can change how numbers are grouped to add.
6+3 = 3+6
{
The Commutative Property says that you can add numbers in any order.
6 + 6 = 12
2 + 10 = 12
9+0=9
Directions: Use the Commutative Property to switch the numbers.Then add. a
b
1. 3 + 7 =
+
=
2+9=
+
=
2. 8 + 4 =
+
=
6+3=
+
=
Directions: Use the Associative Property to regroup the numbers.Then add. a
+(
+
)
(9 + 7) + 3 =
+(
+ +(
= +
+ )
(6 + 9) + 1 =
+(
+
) =
+
)
{
{
4. (8 + 4) + 3 =
+
{
{
3. (6 + 5) + 2 =
b
=
+
=
Directions: Complete the number sentences to show the Identity Property.
5. 5 +
a
b
=
+7=
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
c
10 +
=
Date 24
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Fast Facts Now it’s time for some speed addition.
Memorizing facts like 5 + 5 will make adding bigger numbers easy. 5 + 5 = 10
Directions: Time yourself. Learn these facts by heart. a
b
c
d
e
f
1.
9+ 3 =
5+ 4 =
2+ 2 =
7+ 3 =
6+ 7 =
2+ 8 =
2.
3+ 5 =
2+ 9 =
0+ 7 =
3+ 9 =
0+ 2 =
10 + 3 =
3.
0+ 0 =
4+ 2 =
1+ 6 =
5+ 5 =
7+ 2 =
9 +1=
4.
3+ 6 =
1+ 4 =
4+ 5 =
3+ 4 =
0+ 9 =
8+ 3 =
5.
8+ 2 =
7 + 10 =
2+ 7 =
0+ 5 =
9+ 2 =
6+ 6 =
6.
8 +1=
3+ 3 =
1+ 9 =
6+ 4 =
5+ 3 =
2+ 4 =
7.
9+ 6 =
4+ 6 =
8+ 4 =
2+ 3 =
1+ 7 =
10 + 4 =
8.
6+ 8 =
3+ 8 =
7+ 7 =
2 + 10 =
7+ 8 =
1+ 9 =
9.
2+ 5 =
7+ 4 =
6+ 2 =
8 + 10 =
0+ 7 =
4+ 8 =
10.
0+ 6 =
3+ 7 =
1+ 5 =
9+ 8 =
4+ 4 =
6+ 3 =
11.
8+ 8 =
8+ 6 =
4+ 3 =
0+ 4 =
2+ 6 =
7+ 5 =
12.
4+ 7 =
0+ 8 =
6 +1=
9+ 9 =
5+ 2 =
6 + 10 =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 25
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Addition Lining up your numbers carefully can be very important.
Here’s how to rewrite this number sentence in vertical form. 11 + 8 =
11 + 8 19
Directions: Rewrite in vertical form, then add. a
1.
b
12 + 5 =
14 + 4 = +
2.
22 + 6 =
+
41+ 3 =
53 + 6 =
11+ 7 = +
+
34 + 5 = +
4.
18 + 1 = +
+ 3.
c
21+ 4 =
20 + 6 = +
+
52 + 4 = +
43 + 5 = +
+
Directions: Solve the problems. Show your work. a
b
5. Rose had twelve flowers in her basket. Lily gave her seven more. How many did she have in all?
Pete picked 31 apples and 8 pears in the orchard. How many pieces of fruit did he have in all?
+
+
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 26
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Addition Regrouping is a great skill that will help you add big numbers.
This place-value chart will help you understand regrouping.
Tens
Ones 1
26 + 9 35 Directions: Add. Remember to regroup. a
b
c
d
e
f
1.
19 + 7
25 + 6
53 + 7
49 + 9
64 + 8
27 + 8
2.
34 + 8
42 + 9
77 + 6
83 + 9
56 + 6
32 + 9
3.
15 + 7
67 + 9
26 + 8
45 + 6
73 + 9
44 + 8
4.
35 + 5
84 + 6
29 + 9
61 + 9
88 + 8
27 + 7
5.
27 + 6
39 + 3
76 + 8
82 + 9
48 + 7
73 + 8
6.
57 + 3
75 + 6
47 + 9
24 + 7
62 + 8
49 + 6
7.
67 + 3
54 + 7
85 + 5
73 + 7
87 + 9
79 + 5
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 27
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Numbers to 2 Digits Here come some bigger numbers. You’ve got it! Tens
Ones
1
34 +27 61 Directions: Add. Regroup when necessary. a
b
c
d
e
f
1.
47 +31
29 +43
17 +34
36 +21
57 +33
45 +25
2.
56 +25
63 +44
85 +12
27 +57
48 +47
67 +24
3.
89 +45
28 +93
46 +52
38 +59
62 +28
95 +13
4.
43 +76
78 +24
69 +32
85 +13
92 +36
72 +85
5.
57 +75
96 +25
38 +49
47 +56
84 +37
92 +49
6.
88 +56
73 +46
65 +29
83 +27
55 +44
19 +84
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 28
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Numbers to 3 Digits Isn’t addition fun when you know how?
Hundreds
Tens
Ones
1
4 31 + 95 526 Directions: Add. Regroup when necessary. a
b
c
d
e
f
1.
532 + 7
621 + 4
334 + 3
728 + 1
842 + 7
633 + 5
2.
768 + 8
439 + 5
626 + 7
894 + 5
931 + 9
774 + 8
3.
834 + 21
973 + 15
463 + 42
756 + 29
529 + 31
964 + 7
4.
339 + 6
723 + 54
697 + 3
489 + 13
708 + 44
646 + 35
5.
821 + 89
457 + 27
530 + 17
649 + 85
798 + 8
902 + 69
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 29
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Numbers to 3 Digits Look at you go. You’re on a roll! 11
736 +278 1, 014 Directions: Add. a
b
c
d
e
f
1.
336 +241
495 +403
248 +431
526 +313
107 +231
455 +214
2.
637 +119
763 +141
238 +235
497 +320
841 +129
644 +256
3.
379 +104
468 +517
603 +209
741 +195
845 +135
173 +485
4.
806 +114
531 +259
113 +592
627 +402
761 +129
454 +517
5.
509 +732
644 +308
295 +167
385 +499
563 +268
700 +156
6.
263 +648
741 +238
856 +231
928 +491
588 +276
719 +355
7.
365 +887
439 +763
976 +248
892 +158
733 +789
957 +949
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 30
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Numbers to 4 Digits Let’s add with 4-digit numbers. 11
6, 537 + 89 6, 626 Directions: Add. a
b
1.
1, 354 + 5
3, 947 + 8
2.
2, 785 + 7
3.
c
d
e
f
7, 625 + 5
6, 433 + 17
3, 294 + 9
4, 653 + 6
8, 764 + 8
2, 941 + 9
6, 345 + 36
4, 659 + 7
7, 534 + 47
9, 425 + 28
5, 648 + 5
7, 391 + 8
3, 554 + 26
4, 927 + 35
1, 367 + 7
4.
8, 671 + 32
2, 656 + 15
4, 925 + 25
3, 742 + 8
2, 955 + 7
1156 , + 28
5.
3, 829 + 56
4, 892 + 8
7, 634 + 29
1, 593 + 24
9, 843 + 62
5, 421 + 19
6.
4, 396 + 27
6, 946 + 49
8, 473 + 43
2, 665 + 78
3, 451 + 39
6, 726 + 84
7.
7, 356 + 17
5, 726 + 88
2, 748 + 93
3, 986 + 37
9, 423 + 49
8, 647 + 95
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 31
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Numbers to 4 Digits Wow! Adding is a breeze. 1
1
1, 907 + 438 2, 345 Directions: Add. a
b
c
d
e
f
1.
6, 345 + 122
4, 251 + 435
2,117 + 240
5, 443 + 316
7,142 + 510
8, 712 + 228
2.
7, 653 + 187
2, 754 + 163
5, 278 + 419
6, 778 + 215
4, 351 + 209
9, 046 + 827
3.
1, 459 + 376
3, 447 + 635
5, 507 + 668
4, 329 + 655
7, 627 + 891
1, 005 + 596
4.
3, 469 + 258
9, 476 + 184
6, 429 + 583
2,115 + 872
4, 479 + 235
8, 774 + 693
5.
8, 267 + 249
3, 952 + 670
4, 337 + 825
5, 674 + 608
9, 306 + 864
7, 752 + 168
6.
5, 927 + 374
3, 456 + 587
6, 047 + 971
1, 963 + 527
7, 019 + 796
5, 286 + 756
7.
4, 368 + 954
6, 528 + 795
7, 622 + 587
8, 576 + 537
2, 497 + 734
9, 468 + 839
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 32
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Numbers to 4 Digits Those are some big numbers! 1
1
3, 948 +8, 432 12, 380 Directions: Add. a
b
c
d
e
f
1.
6, 725 +1, 362
2, 763 +4, 218
1, 923 +5, 063
2, 468 +1, 220
6, 654 +2, 337
3, 604 +2, 471
2.
2, 903 +4,107
6, 439 +2,119
8, 837 +1, 154
4,125 + 3,687
5,123 +1, 982
7, 754 +1, 635
3.
1, 876 +4, 312
4, 356 +2, 718
7, 344 +1, 682
3,649 +6,192
4, 894 +2, 767
5, 610 +3, 798
4.
9, 085 +2, 513
3,458 +4,761
5,139 +1, 473
4, 428 +7,164
6, 243 +1, 827
5, 409 +2, 398
5.
4,566 +2,115
8, 429 +1, 087
5, 610 +2, 895
3,645 +3,761
4, 008 +7, 099
6, 481 +2, 329
6.
2, 459 +7, 365
4,127 + 3, 943
6, 084 +2, 756
5,434 +1, 978
7, 941 +1, 538
8,196 +1,375
7.
1, 825 +3, 679
4, 856 +2, 957
6, 528 +1, 775
8, 409 +8, 694
2, 887 +4, 678
9, 415 +2, 786
Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 33
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Mixed Addition Now, let’s mix it up a little.
Directions: Add. Remember to regroup when necessary. a
b
c
d
e
f
1.
23 +35
142 + 45
73 +19
63 +33
371 + 24
46 +37
2.
456 + 9
28 +54
64 +81
163 + 29
75 +25
286 + 27
3.
39 +54
752 + 8
259 + 27
76 +48
577 + 9
635 + 23
4.
726 + 94
1, 543 + 5
644 + 95
533 + 91
6, 593 + 7
249 + 86
5.
4, 824 + 163
74 +59
238 + 73
493 + 7
1, 356 + 39
37 +76
6.
7, 365 + 5
928 + 47
538 + 8
8,641 + 229
655 + 78
7, 658 + 9
7.
3, 556 + 85
5, 964 + 128
4, 983 + 8
6, 489 + 24
2, 219 + 83
4, 486 + 145
8.
6,541 + 849
9, 644 +3, 856
1, 706 + 539
2, 415 +6, 395
5, 337 +8, 376
6, 438 +4, 065
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 34
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Mixed Addition Wow! You’re like a calculator.
Directions: Add. a
b
c
d
e
f
1.
39 +56
84 +92
395 + 7
57 +74
44 +66
93 +27
2.
483 + 7
65 +48
29 +56
86 +27
246 + 9
42 +98
3.
619 + 86
75 +35
237 + 8
93 +47
236 + 38
63 +77
4.
146 + 57
2, 257 + 8
94 +87
508 + 25
459 + 9
335 + 66
5.
645 +192
426 +289
763 +457
3, 795 + 6
487 + 53
296 + 73
6.
3, 954 + 26
225 +486
7, 750 + 68
644 +895
1, 463 + 257
829 +196
7.
2,109 + 894
1, 762 + 358
8, 624 + 587
4, 662 + 89
9, 624 + 76
2, 699 + 157
8.
4, 276 + 852
2, 097 +8, 654
6, 035 + 972
4,761 + 309
1, 842 + 3, 654
9, 346 +3, 385
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 35
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Subtraction Subtraction has to do with figuring out the difference between two groups.
If you take away 6 balls, how many will be left over? 15 – 6 = 9 0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
Directions: Subtract. Use the number line to help you. a
b
c
d
1.
7− 3 =
6 −1=
4− 2 =
8− 6 =
2.
9− 4 =
10 − 0 =
8− 5 =
9− 2 =
3.
8− 2 =
4− 3 =
10 − 7 =
6− 5 =
4.
10 − 9 =
9− 7 =
5− 3 =
11− 4 =
5.
7− 0 =
5 −1=
2− 0 =
14 − 5 =
6.
10 − 7 =
13 − 8 =
9− 8 =
7− 6 =
7.
17 − 3 =
8− 3 =
14 − 7 =
16 − 4 =
8.
12 − 6 =
20 − 4 =
11− 7 =
18 − 14 =
9.
17 − 10 =
13 − 11 =
19 − 3 =
16 − 6 =
10.
20 − 15 =
18 − 7 =
11− 5 =
12 − 9 =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 36
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Fast Facts Let’s work on some speed subtraction.
Work on memorizing these facts, and you’ll be on your way to subtracting big numbers. 18 – 7 = 11 Directions: Time yourself. Learn these facts by heart. a
b
c
d
e
f
1.
4− 3 =
7 −1=
6− 3 =
2 −1=
9− 8 =
10 − 5 =
2.
5− 0 =
3 −1=
8− 3 =
11− 7 =
6− 4 =
7− 4 =
3.
13 − 6 =
9− 5 =
10 − 7 =
12 − 3 =
8− 2 =
6− 5 =
4.
7− 6 =
12 − 8 =
13 − 5 =
9− 8 =
2− 0 =
10 − 2 =
5.
6− 2 =
0− 0 =
14 − 7 =
8− 7 =
4 −1=
11− 5 =
6.
13 − 3 =
10 − 9 =
15 − 6 =
9− 9 =
12 − 4 =
7− 3 =
7.
3− 2 =
14 − 3 =
16 − 9 =
1− 0 =
19 − 12 =
15 − 13 =
8.
20 − 3 =
17 − 16 =
13 − 6 =
14 − 11 =
18 − 15 =
10 − 4 =
9.
18 − 5 =
19 − 0 =
16 − 5 =
13 − 9 =
17 − 7 =
14 − 3 =
10.
17 − 6 =
15 − 2 =
14 − 12 =
20 − 19 =
18 − 2 =
16 − 10 =
11.
14 − 14 =
12 − 4 =
13 − 3 =
17 − 0 =
16 − 1 =
15 − 7 =
12.
19 − 10 =
16 − 5 =
12 − 2 =
15 − 13 =
20 − 11 =
18 − 17 =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 37
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Subtraction Time to practice subtracting in vertical form.
Here’s how to rewrite this number sentence in vertical form. 17 − 5 =
17 − 5 12
Directions: Rewrite in vertical form, then subtract. a
1.
b
19 − 7 =
15 − 3 = –
2.
25 − 2 =
–
38 − 7 =
46 − 6 =
27 − 3 = –
–
34 − 3 = –
4.
12 − 2 = –
– 3.
c
39 − 8 =
16 − 5 = –
–
55 − 3 = –
28 − 5 = –
–
Directions: Solve. Use vertical form. a
b
5. Deborah counted 29 geese in the lake.Then, 8 flew away. How many were left?
Eric bought 3 dozen, or 36, apples. Unfortunately, 6 of them were rotten. How many good apples did he have?
–
–
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 38
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Subtraction Use the place value chart to understand regrouping in subtraction.
Tens Ones
312
42 − 7 35 Directions: Subtract. Remember to regroup. a
b
c
d
e
f
1.
21 − 6
43 − 4
65 − 9
33 − 7
26 − 8
58 − 9
2.
47 − 9
23 − 8
32 − 5
84 − 6
70 − 2
62 − 3
3.
54 − 7
37 − 9
21 − 2
46 − 8
93 − 4
72 − 9
4.
35 − 7
61 − 3
72 − 4
94 − 7
38 − 9
54 − 6
5.
40 − 3
55 − 6
81 − 9
37 − 8
72 − 3
93 − 5
6.
67 − 9
28 − 9
50 − 7
82 − 6
63 − 5
33 − 4
7.
96 − 7
70 − 9
62 − 8
94 − 5
32 − 6
44 − 9
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 39
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Recognize Fact Families Fact families are groups of numbers that work together.
5+3=8
8–3=5
3+5=8
8–5=3
Directions: Use the fact families to write an addition sentence and a subtraction sentence. a
b
c
1.
Fact family: 9, 4, 5 Addition: Subtraction:
Fact family: 7, 10, 3 Addition: Subtraction:
Fact family: 15, 9, 6 Addition: Subtraction:
2.
Fact family: 12, 6, 6 Addition: Subtraction:
Fact family: 3, 4, 7 Addition: Subtraction:
Fact family: 8, 1, 9 Addition: Subtraction:
3.
Fact family: 11, 5, 6 Addition: Subtraction:
Fact family: 13, 3, 10 Addition: Subtraction:
Fact family: 9, 5, 14 Addition: Subtraction:
4.
Fact family: 8, 6, 2 Addition: Subtraction:
Fact family: 19, 13, 6 Addition: Subtraction:
Fact family: 15, 7, 8 Addition: Subtraction:
5.
Fact family: 22, 11, 11 Addition: Subtraction:
Fact family: 31, 15, 16 Addition: Subtraction:
Fact family: 9, 7, 16 Addition: Subtraction:
6.
Fact family: 10, 34, 24 Addition: Subtraction:
Fact family: 5, 19, 14 Addition: Subtraction:
Fact family: 25, 7, 18 Addition: Subtraction:
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 40
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Check Addition and Subtraction A great way to check your math when you add or subtract is to use fact families. Check this addition problem using subtraction.
23 34 +11⇒ −11 34 23
Check this subtraction problem using addition.
63 42 −21⇒ +21 42 63
Directions: Add, then subtract to check your answer. a
b
c
d
1.
37 + 9
25 +13
49 + 9
36 +11
21 +15
2.
54 + 8
29 +10
33 +24
42 +14
62 +23
3.
47 +19
65 +35
26 +41
39 +18
58 +25
e
Directions: Subtract, then add to check your answer. a
b
c
d
e
4.
73 −26
55 −46
63 −27
42 −31
75 −53
5.
45 −17
39 −14
51 −38
28 −19
64 −47
6.
67 −36
78 −49
82 −57
44 −16
93 −28
Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 41
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Numbers to 2 Digits Keep it up.You’re going strong!
Tens Ones
411
51 −3 8 13
Directions: Subtract. Regroup when necessary. a
b
c
d
e
f
1.
34 −11
47 −26
28 −15
36 −27
53 −35
62 −48
2.
32 −29
57 −12
72 −56
41 −19
52 −28
35 −16
3.
68 −49
23 −18
36 −19
44 −28
56 −47
65 −38
4.
76 −53
82 −67
54 −45
91 −85
61 −27
72 −55
5.
93 −38
60 −41
27 −18
34 −15
81 −72
56 −29
6.
84 −57
32 −12
51 −48
62 −43
70 −32
95 −76
7.
40 −26
92 −62
71 −55
56 −27
85 −59
68 −39
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 42
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Numbers to 3 Digits Great job! Subtraction is fun. Hundreds
Tens
Ones
214
34 6 − 63 283
Directions: Subtract. a
b
c
d
e
f
1.
467 − 8
243 − 6
678 − 11
162 − 9
384 − 7
231 − 5
2.
343 − 12
876 − 8
266 − 17
485 − 9
227 − 31
455 − 62
3.
851 − 19
237 − 45
111 − 8
351 − 13
627 − 91
521 − 6
4.
655 − 26
147 − 53
345 − 8
243 − 61
859 − 82
776 − 29
5.
914 − 52
645 − 29
703 − 51
633 − 9
252 − 18
559 − 72
6.
431 − 50
285 − 7
642 − 71
957 − 85
850 − 23
728 − 32
7.
306 − 75
597 − 89
900 − 70
423 − 15
257 − 83
849 − 72
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 43
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Numbers to 3 Digits The numbers are getting bigger. You can do it! 2 12 Sometimes you have to 3 2 17 regroup more than 437 once. −2 5 8 17 9
Directions: Subtract. a
b
c
d
e
f
1.
543 −322
673 −451
836 −703
461 −235
569 −534
245 −103
2.
685 −394
727 −516
425 −313
546 −227
884 −591
633 −413
3.
873 −765
297 −143
467 −329
348 −256
519 −376
706 −493
4.
471 −180
562 −239
278 −199
785 −390
643 −498
925 −706
5.
644 −468
865 −193
258 −149
762 −458
925 −168
881 −476
6.
457 −238
943 −267
726 −539
464 −385
729 −562
266 −179
7.
733 −257
845 −768
921 −632
681 −293
566 −278
725 −128
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 44
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Numbers to 4 Digits Here we go with 4 digits. 1 15 5 15
3, 2 6 5 − 7 8 3, 1 8 7 Directions: Subtract. a
b
c
d
1.
1, 439 − 7
2, 488 − 13
4, 616 − 5
8, 624 − 4
7, 335 − 3
3,148 − 36
2.
4, 225 − 23
3, 670 − 9
2, 435 − 7
8,163 − 14
5, 351 − 60
1, 495 − 37
3.
1, 735 − 70
9, 332 − 19
6, 078 − 9
5, 417 − 52
2, 634 − 28
7, 735 − 9
4.
7, 243 − 51
6, 462 − 94
4, 215 − 35
8, 654 − 79
3, 241 − 37
5, 072 − 33
5.
9, 552 − 46
3,147 − 85
5, 360 − 55
6,157 − 78
1, 536 − 40
2, 752 − 93
6.
6, 503 − 52
4,117 − 43
2, 731 − 86
7, 915 − 27
8, 344 − 32
5, 643 − 74
7.
4, 735 − 89
2,136 − 47
8, 640 − 63
5, 442 − 73
7, 612 − 35
9, 347 − 79
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
e
f
Date 45
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Numbers to 4 Digits Subtraction can be such a useful tool! 1 14 615
2, 4 7 5 − 846 1, 6 2 9 Directions: Subtract. a
b
c
d
e
f
1.
3, 951 − 430
8, 563 − 151
5, 738 − 216
6, 414 − 313
8, 954 − 837
2, 559 − 446
2.
7, 719 − 382
1, 445 − 232
6, 425 − 623
5,109 − 107
2, 646 − 512
8, 362 − 301
3.
5, 336 − 425
6, 652 − 375
7, 638 − 417
1, 365 − 346
2,145 − 834
9, 851 − 943
4.
8, 951 − 426
3,157 − 623
4, 215 − 196
5,123 − 810
6, 548 − 639
3, 646 − 417
5.
7, 315 − 407
6,124 − 119
3, 217 − 553
2,115 − 306
8, 346 − 469
3, 346 − 772
6.
5, 521 − 438
3, 762 − 970
8, 632 − 746
6,128 − 309
1, 566 − 387
2, 345 − 676
7.
6, 624 − 839
2, 436 − 687
7, 640 − 895
9, 872 − 993
5, 213 − 345
4, 245 − 966
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 46
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Numbers to 4 Digits The numbers are bigger, but all you have to do is keep track of one place value column at a time. 61413 4 311
7, 5 4 1 − 3, 7 5 7 3, 7 8 4 Directions: Subtract. a
b
c
d
1.
6, 439 −1, 326
5, 314 −2,112
7, 392 −6, 074
4, 487 −3, 215
3, 691 −2, 460
9, 511 −7, 306
2.
5, 562 −1, 459
2, 369 −2,187
6, 273 −5, 429
3,189 −2, 863
4,162 −1, 438
7, 215 −3,108
3.
4, 461 −2, 085
3, 256 −1, 947
6, 443 −6, 289
7, 583 −2, 791
5, 723 −4, 814
9,128 −7, 309
4.
2,145 −1, 562
8, 343 −2, 915
4, 663 −3, 274
6, 591 −3, 847
8, 430 −2, 516
3, 315 −1, 462
5.
6, 548 −2,195
3, 197 − 2, 218
7, 216 −5, 309
8, 746 −2, 298
5, 637 −2, 849
9, 914 −7, 367
6.
2, 276 −1, 577
9, 541 −8, 765
5, 418 −4, 369
6, 521 −3, 333
7, 211 −2, 846
3, 263 −1, 974
7.
8, 825 −4, 957
6, 348 −1, 579
2,140 −1, 593
9, 615 −7, 687
5, 614 −2, 837
7, 761 −3, 965
Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
e
f
Date 47
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Mixed Subtraction It’s practice time.
Directions: Subtract. Remember to regroup when necessary. a
b
c
d
e
f
1.
36 −15
95 −73
74 −31
86 −39
29 −17
47 −28
2.
67 −59
235 − 6
481 − 7
82 −67
35 −25
40 −13
3.
119 − 26
438 − 9
221 − 56
465 − 59
624 − 6
856 − 77
4.
414 −236
827 −119
336 − 47
641 −394
723 −536
553 −429
5.
6, 348 − 9
428 −349
7,153 − 82
8, 546 − 97
2,136 − 8
6, 614 − 35
6.
4, 563 − 9
6, 215 − 344
9,331 − 358
5, 327 − 84
4, 935 − 976
7, 250 − 79
7.
4, 675 − 89
5,461 − 395
8, 854 −2, 932
7, 653 − 498
6, 463 − 278
9,126 − 77
8.
3, 115 − 2,604
9,651 − 837
7, 417 −3, 854
2,671 − 395
5, 315 −1, 972
6, 431 −2, 915
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 48
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Mixed Subtraction Stretch those skills.
Directions: Subtract. Remember to regroup when necessary. a
b
c
d
e
f
1.
68 −59
73 −38
440 − 26
94 −76
238 − 19
67 −49
2.
453 − 87
238 − 45
652 − 99
821 − 62
434 − 9
952 − 78
3.
658 − 29
540 − 76
223 −145
674 −439
776 −281
343 − 69
4.
847 −149
327 −309
9, 410 − 36
522 −339
2, 456 − 7
7, 345 − 67
5.
1146 , − 8
4, 634 − 75
8, 312 − 9
3,451 − 133
567 −197
644 −347
6.
9, 560 − 294
2, 734 −2, 687
4,159 − 83
7, 624 − 851
8, 631 − 144
5,127 − 78
7.
1143 , − 275
6, 594 − 398
3, 659 −1, 882
8, 423 − 795
5, 664 −2, 783
9, 457 −1, 369
8.
5, 495 −1, 567
4, 432 −3,168
7, 327 −6, 719
4, 332 − 195
3, 673 − 957
8, 633 −5, 752
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 49
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Three Numbers Adding three numbers is a lot like adding two. Just remember to add one place at a time. 1
17 131 + 224 372 Directions: Add. Don’t forget to regroup. a
b
c
d
1.
13 21 +44
32 12 +23
45 32 +11
131 46 + 25
203 47 + 13
82 231 +104
2.
62 14 +19
26 13 +41
120 342 + 37
237 40 + 51
43 24 +55
236 102 + 40
3.
73 24 +30
332 140 +415
26 83 +42
118 236 +205
621 133 + 220
146 22 +405
4.
745 107 + 43
271 305 +132
451 85 +213
27 432 +184
134 93 +430
620 141 +209
5.
68 240 +331
277 104 +312
601 235 +143
321 453 + 42
166 245 +403
524 123 +261
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
e
f
Date 50
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems Word problems are fun because they tell a story.
When you solve a word problem, look for the key phrase that tells you which operation to use. Key phrases for addition: in all, altogether, total Key phrases for subtraction: how many more, left, difference
Directions: Solve. Hint: Underline the key phrase before you solve. 1. There were 25 people at the party, but 17 had to leave early. How many people were left at the party?
2. Katie is 132 centimeters tall, and Oscar is 151 centimeters tall.What is the difference in height between them?
3. Larissa and her dad went to the orchard to pick apples. Larissa picked 31 apples, and her dad picked 39. How many apples did they pick altogether?
4. Manuel has two books he wants to read. One is 46 pages long, and the other is 55 pages long. If he reads both books, how many pages will he have read in all?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 51
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems Sometimes it’s helpful to draw a picture when you are solving a word problem. Becky lives 26 miles from the mall, and Teresa lives 15 miles from the mall. How far will Becky have traveled if she goes to the mall and then to Teresa’s house? 26 + 15 = 41 miles
Directions: Solve. Underline the key words or draw a picture. 1. The Smith Building is 134 feet tall, and the Copley Building is 98 feet tall. How much taller is the Smith Building?
2. Jimmy is putting up a new clothesline that goes from the house to the tree in the backyard and from the tree to the garage. If the tree is 21 feet from the house and 19 feet from the garage, how much string should he buy to make the clothesline?
3. Sacramento is between Placerville and San Francisco along Highway 80. If San Francisco is about 92 miles from Sacramento and about 137 miles from Placerville, how far is Sacramento from Placerville?
4. Last year Paula was 123 centimeters tall, but she grew 12 centimeters. How tall is she now?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 52
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Addition and Subtraction Let’s bring it all together with some practice.
Directions: Solve. a
b
c
d
e
f
1.
48 −36
18 +21
34 +52
73 −51
186 − 31
24 +35
2.
236 + 42
57 +24
217 − 15
189 − 57
76 −21
341 + 29
3.
247 + 57
423 − 72
240 − 36
133 + 45
94 −71
237 + 38
4.
119 − 50
344 −123
15 462 +519
325 +417
51 213 +126
524 −370
5.
4, 573 + 24
736 − 52
378 +144
34 322 + 86
9, 452 − 40
974 − 39
Directions: Solve. 6. Raquel counted 27 birds on the fence in her yard. An hour later there were 13 more. How many birds were there in all on the fence?
€
7. Yung has a collection of 78 baseball cards while Yuri has a collection of 113. How many more cards does Yuri have than Yung?
Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 53
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Addition and Subtraction Here’s a little more addition and subtraction.
Directions: Solve. a
b
c
d
e
f
1.
159 − 32
24 31 +14
233 + 54
73 −58
325 −103
49 +73
2.
1459 − 33
673 −145
43 12 +14
5, 621 − 9
18 23 +34
276 +114
3.
422 −305
27 32 +45
726 − 32
694 +208
766 +4, 317
23 402 + 54
4.
633 +947
826 −147
1748 , − 59
82 143 + 21
2185 , − 933
844 −195
5.
1, 499 +2, 381
2, 845 + 461
125 371 +150
2, 356 − 438
954 −788
7, 634 − 235
Directions: Solve. 6. Julie’s favorite candy store is 25 blocks from her house, and the art supply store is 17 blocks further on from the candy store. How many blocks will Julie have to walk to get from her house to the art supply store if she stops at the candy store on the way? € Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 54
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Equivalent Fractions By looking at the pictures you can tell that the fractions are equal.
1 2 1 21 2 = = = 2 4 2 42 4 Directions: Use the pictures to find the equivalent fraction. a
b
c
1 1 1 = = = 3 93 93 9
3 3 3 = = = 4 84 84 8
5 5 5 = = = 6 126 12 6 12
1 1 1 = = = 4 84 84 8
1 1 1 = = = 2 62 62 6
2 2 2 = = = 6 96 96 9
3 3 3 = = = 4 124 12 4 12
2 2 2 = = = 4 84 84 8
2 2 2 = = = 5 105 10 5 10
1 1 1 = = = 2 102 10 2 10
2 2 2 = = = 3 123 12 3 12
1 1 1 = = = 2 42 42 4
1.
2.
3.
4.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 55
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Reduce Fractions To simplify a fraction, just find an equivalent fraction.
4 1 = 8 2
Directions: Use the pictures to help you simplify the fractions. a
b
c
4 = 6
2 = 8
2 = 4
3 = 9
2 = 10
8 = 12
4 = 12
6 = 9
4 = 10
6 = 12
8 = 10
3 = 12
1.
2.
3.
4.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 56
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Fractions When you add fractions with the same denominators, all you have to do is add the numerators.
1 2 3 + = 8 8 8
Directions: Add the fractions. Shade the picture to figure out the answer. a
c
b
1.
1 2 + = 4 4
2 3 + = 7 7
5 2 + = 9 9
1 4 + = 6 6
5 6 + = 12 12
2 3 + = 8 8
7 2 + = 11 11
4 1 + = 9 9
5 1 + = 7 7
1 1 + = 3 3
5 2 + = 8 8
3 4 + = 10 10
2.
3.
4.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 57
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Fractions Sometimes after you add fractions you need to simplify the sum.
1 5 6 2 + = = 9 9 9 3
Directions: Add the fractions, then simplify. a
c
b
1.
3 3 + = 8 8
=
1 3 + = 6 6
=
3 1 + = 10 10
6 1 + = 7 7
=
1 3 + = 8 8
=
5 3 + = 12 12
=
2 1 + = 9 9
=
4 4 + = 10 10
=
4 1 + = 5 5
=
=
2.
4 5 + = 12 12
=
3.
1 1 + = 6 6
=
4.
3 1 + = 12 12
=
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 58
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Fractions To subtract fractions with the same denominators, just subtract the numerators.
5 2 3 − = 7 7 7
Directions: Subtract the fractions. Use the picture to help you. a
c
b
1.
5 4 − = 6 6
7 2 − = 8 8
10 3 − = 12 12
3 2 − = 4 4
7 3 − = 9 9
2 1 − = 7 7
2 1 − = 3 3
9 2 − = 10 10
5 4 − = 8 8
8 3 − = 9 9
6 1 − = 8 8
6 4 − = 11 11
2.
3.
4.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 59
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Subtract Fractions Sometimes, after subtracting, you can simplify the difference.
10 - 2 = 8 = 2 12 12 12 3
Directions: Subtract the fractions, then simplify. a
c
b
1.
11 1 − = 12 12
=
3 1 − = 4 4
=
5 3 − = 8 8
=
4 2 − = 6 6
=
7 3 − = 8 8
=
9 1 − = 10 10
=
8 2 − = 9 9
=
9 6 − = 12 12
=
8 3 − = 10 10
=
7 3 − = 12 12
=
7 1 − = 8 8
=
5 2 − = 6 6
=
2.
3.
4.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 60
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems How about some word problems with fractions?
6 There is ᎏ of Jackson’s birthday cake left in the refrigerator. If he and 10 3 his parents eat ᎏ more of the cake for dinner, how much will be left? 10 6 3 3 − = 10 10 10 Directions: Add or subtract fractions to solve the word problems. Draw a picture if you’d like. 2 1 1. Pedro ate ᎏ of a can of soup for lunch and ᎏ for dinner. How much soup 4 4 did he eat?
2 2. There are 9 chapters in the book Janine is reading. If she read ᎏ yesterday 9 3 and another ᎏ today, how much of the book did she read over the 2 days? 9
3. There is a set of 7 blocks on the table. 5 of the blocks are green and 2 are yellow.What fraction of the set of blocks is green?
3 4 4. Pauline had a party yesterday and ᎏ of the cheese pizza was left. ᎏ of 12 12 the mushroom pizza was left. She put the pieces together in the same box. What fraction of a pizza did she have left over? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 61
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems Now let’s add or subtract, then reduce.
1 5 Fiona had one can of paint that is ᎏ full and another that is ᎏ full. If 8 8 she combines the two cans of paint, how much will she have in all? 5 1 6 3 + = = 8 8 8 4
Directions: Add or subtract fractions to solve the word problems. Don’t forget to simplify your answer. 5 3 1. Collin had ᎏ of a jar of gumballs. He gave away ᎏ. How much did he have left? 6 6 2. While cleaning up his room, Joaquin noticed that he had one box of pencils that was 2 4 ᎏ full and another that was ᎏ full. If he decides to combine the boxes of pencils, 9 9 how full will the new box be? 3 7 3. Khalila had ᎏ of a pizza and she ate ᎏ. How much was left? 8 8 5 4. Joann and Inez decided to combine their packs of gum. If Joann had ᎏ of a pack 12 3 and Inez had ᎏ of a pack, how much do they have together? 12 7 5. Pete’s aunt gave him $11 for his birthday. If he spent ᎏ on baseball cards, how 11 much did he have left? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 62
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Fractions Let’s practice adding and subtracting fractions.
Directions: Add or subtract. a
c
b
1.
3 1 + = 7 7
5 2 − = 10 10
5 4 − = 6 6
1 2 + = 5 5
3 5 + = 12 12
=
6 2 − = 9 9
10 4 − = 11 11
5 3 − = 8 8
=
1 1 + = 4 4
1 1 + = 3 3
9 6 − = 10 10
8 2 + = 12 12
=
4 1 + = 6 6
7 3 − = 8 8
=
2.
3.
=
4.
5.
2 4 + = 9 9 €
=
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 63
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Fractions Here’s some fraction review.
Directions: Compare the fractions using <, >, or =.
a
c
b
1.
2.
3.
Directions: Write a fraction and a decimal to tell how much is shaded. 4.
or
or
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
or
Date 64
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Multiplication Multiplication is like repeated addition.
3 + 3 + 3 + 3 = 12 3 x 4 = 12 Directions: Add or multiply. a
b
1.
7 × 2 = 7 + 7 = ___
6 × 4 = 6 + 6 + 6 + 6 = ___
2.
9 × 3 = 9 + 9 + 9 = ___
8 × 1 = 8 = ___
3.
2 × 5 = 2 + 2 + 2 + 2 + 2 = ___
7 × 4 = 7 + 7 + 7 + 7 = ___
4.
4 × 0 = ___
9 × 2 = 9 + 9 = ___
Directions: Change the addition sentence into a multiplication sentence. Solve. b
a
5.
7 + 7 + 7 = _____ = ___
1 +1 +1 +1 +1 = _____ = ___
6.
4 + 4 + 4 + 4 + 4 = _____ = ___
5 + 5 + 5 = _____ = ___
7.
9 + 9 = _____ = ___
6 + 6 + 6 + 6 + 6 + 6 = _____ = ___
8.
8 + 8 + 8 = _____ = ___
2 + 2 + 2 = _____ = ___
9.
3 + 3 + 3 + 3 + 3 + 3 = _____ = ___
7 + 7 = _____ = ___
6 + 6 + 6 = _____ = ___
9 + 9 + 9 + 9 = _____ = ___
10.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 65
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply by 0 and 1 Remember these rules when multiplying by 0 and 1. When you multiply by 0, you always get 0. 9 x 0 = 0 When you multiply by 1, you always get the number you started with. 3x1=3 Directions: Multiply. a
b
c
d
e
1.
8 ×1
5 ×0
0 ×7
1 ×4
2 ×0
2.
3 ×0
1 ×2
6 ×0
9 ×1
1 ×0
3.
1 ×3
7 ×1
1 ×8
0 ×4
1 ×5
4.
7 ×0
5 ×1
4 ×1
0 ×2
0 ×6
5.
0 ×5
6 ×1
2 ×1
8 ×0
0 ×3
6.
1 ×1
4 ×0
1 ×7
0 ×5
0 ×0
7.
1 ×9
0 ×8
0 ×1
1 ×6
0 ×9
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 66
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply Fast Facts Learning these fast facts will make you a multiplication whiz!
Directions: Time yourself. Learn these facts by heart. a
b
c
d
e
1.
2 ×1
2 ×2
2 ×3
2 ×4
2 ×5
2.
2 ×6
2 ×7
2 ×8
2 ×9
2 ×10
3.
3 ×1
3 ×2
3 ×3
3 ×4
3 ×5
4.
3 ×6
3 ×7
3 ×8
3 ×9
3 ×10
5.
4 ×1
4 ×2
4 ×3
4 ×4
4 ×5
6.
4 ×6
4 ×7
4 ×8
4 ×9
4 ×10
7.
5 ×1
5 ×2
5 ×3
5 ×4
5 ×5
8.
5 ×6
5 ×7
5 ×8
5 ×9
5 ×10
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 67
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply Fast Facts Once you memorize these fast facts, you’ll be on your way.
Directions: Time yourself. Learn these facts by heart. a
b
c
d
e
1.
6 ×1
6 ×2
6 ×3
6 ×4
6 ×5
2.
6 ×6
6 ×7
6 ×8
6 ×9
6 ×10
3.
7 ×1
7 ×2
7 ×3
7 ×4
7 ×5
4.
7 ×6
7 ×7
7 ×8
7 ×9
7 ×10
5.
8 ×1
8 ×2
8 ×3
8 ×4
8 ×5
6.
8 ×6
8 ×7
8 ×8
8 ×9
8 ×10
7.
9 ×1
9 ×2
9 ×3
9 ×4
9 ×5
8.
9 ×6
9 ×7
9 ×8
9 ×9
9 ×10
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 68
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply by 2, 5, and 10 Remember these rules when multiplying by 2, 5, or 10.
When you multiply by 2, the product is always even. 2 x 9 = 18 When you multiply by 5, the product always ends in 0 or 5. 5 x 3 = 15 5 x 6 = 30 When you multiply by 10, the product always ends in 0. 10 x 4 = 40
Directions: Multiply. a
b
c
d
1.
4 ×2
5 ×0
4 ×10
10 × 7
4 ×5
10 × 3
2.
1 ×2
3 ×5
10 × 2
8 ×5
5 ×2
6 ×5
3.
2 ×10
5 ×5
2 ×1
6 ×2
10 ×10
10 ×1
4.
2 ×5
10 × 0
7 ×5
2 ×9
5 ×3
2 ×8
5.
3 ×10
5 ×1
9 ×10
0 ×10
5 ×6
5 ×8
6.
2 ×6
5 ×4
5 ×9
7 ×2
2 ×2
1 ×5
7.
10 × 4
0 ×2
5 ×7
1 ×10
10 × 2
10 × 5
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
e
f
Date 69
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply 1-Digit Numbers Let’s practice those multiplication skills one more time.
Directions: Multiply. a
b
c
d
e
f
1.
4 ×4
5 ×9
3 ×2
7 ×6
5 ×10
6 ×6
2.
8 ×1
3 ×7
8 ×6
5 ×0
2 ×9
4 ×3
3.
8 ×5
10 × 6
1 ×9
10 × 0
4 ×7
9 ×6
4.
5 ×5
4 ×9
0 ×8
10 × 9
8 ×7
6 ×1
5.
8 ×10
7 ×5
9 ×9
2 ×7
5 ×4
10 × 4
6.
3 ×0
9 ×7
6 ×5
3 ×9
7 ×7
3 ×1
7.
9 ×0
0 ×7
8 ×8
3 ×5
6 ×2
2 ×8
8.
4 ×6
3 ×10
10 ×10
1 ×7
4 ×1
9 ×8
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 70
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Properties of Multiplication Multiplication has a lot of cool properties.
The Distributive Property says that if you are multiplying a number by two other numbers that are added together, you can multiply by each number and then add.
5 x 4 = 20
{
(2 x 3) x 4 = 2 x (3 x 4) 6 x 4 = 24
2 x 12 = 24
5 x (4 + 3) = 5 x 4 + 5 x 3
{ { {
The Associative Property says that you can change how numbers are grouped when you multiply.
4 x 5 = 20
{
The Commutative Property says that you can multiply numbers in either order.
5 x 7 = 35
20 + 15 = 35
Directions: Use the Commutative Property to solve. a
b
1. 4 x 7 =
x
=
9x2=
x
=
2. 3 x 5 =
x
=
6x4=
x
=
Directions: Use the Associative Property to regroup the numbers. a
b
3. (3 x 7) x 2 =
(9 x 2) x 4 =
4. 2 x (6 x 9) =
5 x (7 x 4) =
Directions: Use the Distributive Property to rewrite the number sentence. a
b
5. 6 x (3 + 2) =
x
+
x
8 x (5 + 9) =
x
+
x
6. (2 + 5) x 6 =
x
+
x
(7 + 3) x 9 =
x
+
x
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 71
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply 2 Digits by 1 Digit When you multiply a 1-digit number by a 2-digit number, multiply the 1-digit number by the value of each place in the 2-digit number. 41 × 3 3 (3 ×1 = 3) +120 (3 × 40 = 120) 123 (3 +120 = 123) Directions: Multiply. a
b
c
d
e
f
1.
12 × 4
23 × 2
34 × 2
53 × 3
61 × 5
24 × 2
2.
81 × 7
32 × 3
23 × 3
64 × 2
51 × 9
73 × 2
3.
52 × 2
44 × 2
91 × 6
53 × 2
61 × 5
94 × 2
4.
83 × 3
31 × 7
62 × 3
73 × 2
84 × 2
22 × 4
5.
72 × 3
63 × 3
54 × 2
92 × 2
81 × 8
74 × 2
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 72
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply 2 Digits by 1 Digit Check out this multiplication problem. 24 × 6 24 (6 × 4 = 24) +120 (6 × 20 = 120) 144 (24 +120 = 144) Directions: Multiply. a
b
c
d
e
f
1.
62 × 7
35 × 4
84 × 3
26 × 5
53 × 8
72 × 6
2.
24 × 6
83 × 7
68 × 2
45 × 3
92 × 7
33 × 6
3.
73 × 8
52 × 9
34 × 7
28 × 4
63 × 5
82 × 6
4.
36 × 7
47 × 5
84 × 8
29 × 3
75 × 5
94 × 3
5.
86 × 5
59 × 8
62 × 6
46 × 3
98 × 4
79 × 9
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 73
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply 3 Digits by 1 Digit As the numbers get bigger, just remember to multiply the 1-digit number by the value of each place in the 3-digit number.
Directions: Multiply.
a
b
c
d
e
f
1.
724 × 2
312 × 4
632 × 3
421 × 3
733 × 2
822 × 4
2.
523 × 3
711 × 9
314 × 2
841 × 2
631 × 3
244 × 2
3.
613 × 3
142 × 2
512 × 3
734 × 2
842 × 2
922 × 3
4.
443 × 2
811 × 6
733 × 3
524 × 2
644 × 2
231 × 3
5.
713 × 2
523 × 3
243 × 2
314 × 2
611 × 5
821 × 3
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 74
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply 3 Digits by 1 Digit Keep up the great work!
Directions: Multiply.
a
b
c
d
e
f
1.
437 × 5
635 × 4
756 × 3
261 × 7
527 × 4
833 × 5
2.
275 × 6
334 × 7
859 × 3
628 × 4
455 × 9
736 × 6
3.
526 × 9
483 × 3
792 × 6
373 × 5
944 × 7
853 × 4
4.
364 × 8
795 × 3
538 × 7
829 × 9
473 × 4
287 × 8
5.
447 × 7
965 × 5
372 × 9
741 × 8
874 × 5
566 × 4
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 75
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply 4 Digits by 1 Digit You can use the same technique with 4-digit numbers that you used with 3-digit numbers.
Directions: Multiply.
a
b
c
d
e
f
1.
5, 414 × 2
7, 322 × 3
2,113 × 3
8, 232 × 4
5, 432 × 2
6,111 × 8
2.
4, 221 × 4
6, 332 × 3
7, 011 × 9
5, 243 × 2
7, 231 × 3
8, 441 × 2
3.
5,113 × 3
8, 243 × 2
9, 413 × 2
6, 021 × 4
4, 332 × 3
3, 244 × 2
4.
2, 211 × 4
5,101 × 7
7, 313 × 3
9,121 × 4
6, 434 × 2
8,144 × 2
5.
6, 233 × 3
3, 221 × 4
8, 442 × 2
9,111 × 8
4, 210 × 4
5, 332 × 3
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 76
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply 4 Digits by 1 Digit Here are some more big numbers. Give it a try.
Directions: Multiply.
a
b
c
d
e
f
1.
5, 247 × 3
7,146 × 6
3, 554 × 7
8, 924 × 4
4, 636 × 5
2, 880 × 7
2.
7, 633 × 8
4, 275 × 3
3148 , × 7
8, 609 × 5
9, 416 × 4
5, 225 × 6
3.
9, 807 × 2
8, 634 × 6
2175 , × 4
4, 063 × 5
3, 951 × 8
7, 652 × 9
4.
5, 468 × 4
6, 047 × 9
1593 , × 6
4,119 × 2
6, 840 × 8
3174 , × 7
5.
8, 963 × 4
7,184 × 3
9, 920 × 9
1673 , × 7
4, 056 × 6
2, 478 × 8
€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 77
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Multiplication You zipped through another section, and now it’s practice time again.
Directions: Multiply.
a
b
c
d
e
f
1.
54 × 2
63 × 3
82 × 4
21 × 5
35 × 6
43 × 2
2.
71 × 8
33 × 2
28 × 4
132 × 4
43 × 6
82 × 2
3.
423 × 3
207 × 5
62 × 8
733 × 2
84 × 7
811 × 6
4.
231 × 3
611 × 5
240 × 6
825 × 7
433 × 3
509 × 4
5.
4,122 × 3
370 × 7
431 × 2
823 × 4
1173 , × 3
6, 450 × 6
€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 78
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Multiplication The more you practice, the easier it gets.
Directions: Multiply.
a
b
c
d
e
f
1.
85 × 7
37 × 6
29 × 8
146 × 5
72 × 9
456 × 2
2.
344 × 7
643 × 5
76 × 3
455 × 7
83 × 9
630 × 5
3.
481 × 4
1561 , × 7
346 × 6
2, 409 × 5
754 × 8
628 × 3
4.
4,158 × 6
133 × 9
563 × 7
2, 485 × 4
7, 036 × 5
1609 , × 7
5.
8, 841 × 5
2, 615 × 4
7, 892 × 7
3, 605 × 9
4,163 × 8
6, 652 × 6
€ Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 79
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Division If you have 8 pieces of candy, and you want to divide them evenly among 4 friends, use division. 2 4 8
)
8÷4 = 2 Division is the inverse of multiplication. 6÷2= 3
6 = 2× 3
Directions: Solve. a
1.
4 ×6 6 24 24
5 ×4 4 20 20
9 ×3 3 27 27
7 ×8 8 56 56
6 ×9 9 54 54
6 ×6 6 36 36
5 ×8 8 40 40
8 ×3 3 24 24
9 ×4 4 36 36
6 ×7 7 42 42
8 ×8 8 64 64
4 ×7 7 28 28
7 ×7 7 49 49
9 ×5 5 45 45
3 ×7 7 21 21
5 ×5 5 25 25
8 ×4 4 32 32
9 ×2 2 18 18
4 ×4 4 16 16
)
3.
)
4.
)
€ 5.
d
7 ×5 5 35 35
)
2.
c
b
)
)
)
)
) )
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
)
)
)
)
)
)
)
)
Date 80
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide Fast Facts Practice these division problems to sharpen your skills.
Directions: Divide. a
1.
2.
3.
4.
5.
6.
7.
€
€
8.
b
c
d
e
22
)
24
)
26
)
28
)
2 10
2 12
)
2 14
)
2 16
)
2 18
)
2 20
33
)
36
)
39
)
3 12
)
3 15
3 18
)
3 21
)
3 24
)
3 27
)
3 30
4 4
)
4 8
)
4 12
)
4 16
)
4 20
)
4 28
)
4 32
)
4 36
)
4 40
55
)
5 10
)
5 15
)
5 20
)
5 25
)
5 35
)
5 40
)
5 45
)
5 50
4 24
5 30
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
) )
) )
) )
Date 81
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide Fast Facts With this you’ll know your fast facts up to 9.
Directions: Divide. a
1.
2.
3.
4.
5.
6.
7.
€
8.
b
c
d
66
)
6 12
)
6 18
)
6 24
)
6 30
6 36
)
6 42
)
6 48
)
6 54
)
6 60
7 7
)
7 14
)
7 21
)
7 28
)
7 35
7 42
)
7 49
)
7 56
)
7 63
)
7 70
8 8
)
8 16
)
8 24
)
8 32
)
8 40
)
8 56
)
8 64
)
8 72
)
8 80
99
)
9 18
)
9 27
)
9 36
)
9 45
)
9 63
)
9 72
)
9 81
)
9 90
8 48
9 54
Name €
e
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
) ) ) )
) )
Date 82
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide by 2, 5, and 10 Remember these rules when dividing by 2, 5, or 10.
Even numbers are always evenly divisible by 2. 16 ÷ 2 = 8 Numbers that end in 0 or 5 are always evenly divisible by 5. 35 ÷ 5 = 7 40 ÷10 = 4
Numbers that end in 0 are always evenly divisible by 10.
Directions: For each number, write 2, 5, and/or 10 if the number is divisible by 2, 5, or 10. a
b
1.
625 _____
38 _____
320 _____
2.
342 _____
2165 , _____
94 _____
3.
720 _____
805 _____
5, 000 _____
4.
64 _____
228 _____
435 _____
5.
1, 200 _____
825 _____
7, 202 _____
b
c
c
Directions: Divide. a
€ €
6.
20 ÷ 2 =
18 ÷ 9 =
50 ÷ 5 =
7.
25 ÷ 5 =
70 ÷ 7 =
10 ÷ 5 =
8.
40 ÷ 4 =
16 ÷ 8 =
35 ÷ 7 =
9.
30 ÷ 3 =
30 ÷ 6 =
30 ÷10 =
10.
12 ÷ 6 =
45 ÷ 9 =
90 ÷ 9 =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 83
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Check Multiplication and Division Practice using multiplication to check your division skills.
6 7 42 → 7 × 6 = 42
)
Directions: Divide, then write a multiplication sentence to check your work. a
1.
2.
3.
4.
5.
6.
7.
8.
b
c
3 18
)
7 42
)
4 16
6 48
)
8 32
)
2 18
)
9 81
)
5 35
3 15
)
7 63
)
6 36
2 16
)
4 32
)
10 80
8 72
)
5 45
)
4 28
7 49
)
9 54
)
3 27
)
8 64
)
9 72
10 50
6 30
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
)
)
)
)
)
)
Date 84
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide 2 Digits by 1 Digit Time to put those skills into action.
Directions: Divide. a
1.
2.
3.
4.
5.
6.
7.
€
8.
b
c
d
)
9 18
6 24
)
4 32
)
18
)
8 64
)
2 16
5 45
)
4 20
6 48
)
3 15
7 63
)
4 16
)
8 56
2 14
)
5 20
)
)
3 30
)
6 42
5 40
)
6 12
)
)
2 10
)
9 27
)
9 72
)
3 24
7 49
4 36
6 36
)
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
)
3 18
)
9 54
5 10
)
6 30
)
3 12
)
8 72
)
4 24
39
)
4 12
)
5 25
)
3 21
)
2 18
)
5 35
)
2 12
Name €
e
)
)
)
)
) )
Date 85
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide 2 Digits by 1 Digit As the dividend gets larger, you can use this technique. 14 6 84 −60 24 −24 0
)
Directions: Divide. a
b
d
e
)
8 96
)
2 58
)
5 80
)
6 72
3 93
)
4 76
)
7 91
)
2 84
)
5 65
6 84
)
7 98
)
3 63
)
8 88
)
4 96
7 84
)
2 36
)
4 64
)
3 57
)
5 95
)
7 77
)
5 70
)
2 92
)
6 66
1.
4 72
2.
3.
4.
5.
4 52
Name €
c
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
)
)
)
Date 86
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide 3 Digits by 1 Digit You can use the same technique with a 3-digit dividend. 62 4 248 −240 8 −8 0
)
Directions: Divide. a
b
c
d
e
)
3 249
)
5 250
)
2 126
)
5 345
)
8 688
)
3 147
)
3 255
)
4 236
)
5 415
)
7 574
)
2 192
)
6 438
)
8 736
)
4 384
)
5 140
)
7 217
)
9 279
)
2 118
)
4 328
)
2 174
1.
8 168
2.
4 324
3.
6 426
4.
3 168
5.
9 846
Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
) )
)
)
Date 87
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide 3 Digits by 1 Digit In this case the quotient has 3 digits too. 124 7 868 −700 168 −140 28 −28 0
)
Directions: Divide. a
b
c
d
e
1.
4 632
)
8 872
)
2 736
)
3 852
)
6 924
2.
5 685
)
9 963
)
7 945
)
4 576
)
3 645
3.
6 762
)
8 912
)
2 588
)
5 830
)
6 876
4.
7 973
)
4 856
)
9 981
)
3 567
)
2 926
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
)
)
Date 88
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide 4 Digits by 1 Digit Now divide with a 4-digit dividend. 757 3 2271 −2100 171 −150 21 −21 0
)
Directions: Divide. a
b
c
d
e
1.
6 1476
)
2 1738
)
5 4315
)
4 2156
)
3 2589
2.
4 3216
)
6 5310
)
8 1160
)
2 1562
)
7 6566
3.
5 3170
)
9 8631
)
3 1155
)
4 2712
)
2 1334
4.
6 5298
)
7 4459
)
2 1854
)
8 6736
)
3 2685
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
)
)
Date 89
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Divide 4 Digits by 1 Digit Excellent work! Keep it up. 1537 5 7685 −5000 2685 −2500 185 −150 35 −35 0
)
Directions: Divide. a
b
c
d
e
1.
6 8574
)
2 5742
)
4 7216
)
3 8538
)
7 9541
2.
5 7105
)
8 9792
)
6 7548
)
9 9063
)
4 6196
3.
2 9158
)
3 7548
)
5 6210
)
8 9488
)
6 9156
4.
4 5948
)
9 9585
)
2 7656
)
5 8745
)
3 9561
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
)
)
Date 90
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Mixed Division Let’s bring it all together with some practice.
Directions: Divide. a
b
c
)
36
)
5 15
)
19
)
10 30
4 32
)
6 126
)
8 48
7 91
)
3 252
)
9 396
)
5 725
)
2 942
)
3 471
)
6 2154
1.
8 24
2.
3 27
3.
4.
5.
8 432
6.
9 927
)
)
d
e
)
)
112
3 18
7 35
)
9 63
)
)
)
7 364
5 65
)
)
10 60
)
6 78
)
7 525
)
8 952
)
)
4 336
)
)
2 1724
)
€
Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 91
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Practice Mixed Division Looks like division is right up your alley!
Directions: Divide. a
b
c
d
1.
2 56
)
5 85
)
3 72
)
7 98
2.
6 564
)
8 96
)
2 246
)
5 615
3.
4 592
)
5 750
)
7 504
)
2 932
4.
3 522
)
9 6741
)
8 920
)
4 748
5.
7 3311
)
6 852
)
3 4110
)
4 936
6.
2 7616
)
9 2412
)
8 9544
)
3 7038
e
)
4 64
)
)
3 99
)
6 444
)
2 1358
)
5 4135
)
7 5516
)
) )
)
)
€
Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 92
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems When you use multiplication and division to solve word problems, just look for the key words that tell you which to use.
Directions: Solve. 1. Heidi has 7 flower baskets. She would like to put 12 dandelions in each basket. How many dandelions will she have to pick in all?
2. Frankie has 64 marbles and 8 bags. If he separates the marbles equally between the bags, how many marbles will be in each bag?
3. The Corner Store is open 11 hours a day, 7 days a week. How many hours is it open per week?
4. Kwan is participating in a walk-a-thon in which he has to walk 3 miles a day for a month to complete his goal. If there are 31 days in the month, how many miles will he need to walk in order to reach his goal?
5. Vanessa needs 56 beads to make some necklaces. If the beads come in bags of 7 beads, how many bags will she need?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 93
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems Here are more word problems to make you a pro!
Directions: Solve. 1. The school library just got a new bookcase that has 9 shelves. If the librarian wants to put 126 books in the bookcase, how many books should he put on each shelf?
2. For 5 nights in a row the play sold out. If there are 214 seats in the theater, how many tickets were sold over the 5 nights?
3. Amir bought 8 boxes of crayons with 36 crayons in a box. How many did he buy in all?
4. Taheesha, June, Mike, and Jacob are driving 348 miles to New York City. If they split up the driving equally among them, how much will each of them have to drive?
5. Bliss is excited to read her new book. It is 234 pages long. If she wants to finish reading the book in 6 days, how many pages will she have to read each day?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 94
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Multiplication and Division It’s review time again. Let’s see how quickly you can zip through these problems.
Directions: Solve. a
b
c
d
e
1.
9 ×7
24 × 2
7 42
)
5 35
)
10 × 9
2.
1 35
)
13 × 3
32 × 4
9 81
)
6 54
3.
41 × 5
7 147
)
4 48
)
17 ×1
422 × 3
4.
6 252
)
52 × 4
3 75
)
633 × 3
8 184
5.
2 734
)
9 198
)
543 × 2
704 × 2
7 259
6.
301 × 9
8, 214 × 2
5 145
832 × 3
6 2706
)
)
)
)
)
€ Name €
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 95
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Multiplication and Division One more round of multiplication and division.
Directions: Solve.
a
b
c
d
e
1.
5 65
73 × 6
47 × 8
2 52
9 72
2.
631 × 7
5 435
)
495 × 2
153 × 9
3 654
3.
256 × 6
395 × 3
7 679
4.
8 672
588 × 4
5.
927 × 2
6.
6 3432
)
)
)
€
€
)
)
)
9 288
307 × 5
2 3412
)
6, 034 × 3
7 518
5 425
2, 762 × 8
453 × 6
7 8330
7, 034 × 5
9 1575
)
)
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
) )
)
4, 281 × 4
3 7401
Date 96
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Count and Write Money Learn how to count money so that you can keep good track of yours! = = = =
1 1 1 1
penny = 1¢ = $0.01 › count by 1s nickel = 5¢ = $0.05 › count by 5s dime = 10¢ = $0.10 › count by 10s quarter = 25¢ = $0.25 › count by 25s
Directions: Write how much money is shown. a
b
1. $0.05
$0.10
$0.15
$0.16
2.
Directions: Write how much money is shown.
3.
4.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 97
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Count and Write Money Now we’re getting into the big bucks.
= 1 dollar = $1.00
= 10 dollars = $10.00
= 5 dollars = $5.00
= 20 dollars = $20.00
Directions: Write how much money is shown. a
b
1.
2.
3.
Directions: List the bills and coins you would need to buy these items. 4.
$8.43
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
$24.30
Date 98
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add and Subtract Money Now we’re ready to start buying.
Jana bought a hat for $6.00 and a scarf for $11.50. How much did she spend? $6.00 +$11.50 $17.50 Directions: Calculate how much it would cost to buy the following items. Remember to line up the decimal points. $7.00
$14.00
a
$9.50
b
1. A bear and a monkey
2 bears
2. An elephant and a monkey
2 monkeys
Directions: Pretend you have $29.50 in your pocket. Calculate how much you would have left if you bought the following items. a
b
3. An elephant
A monkey
4. A bear
2 monkeys
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 99
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add and Subtract Money Sometimes you have to regroup when you add or subtract money.
Ori bought a plant for $6.35 and a watering can for $8.75. How much did he spend? 1 1 $ 6 . 35 + $ 8 .75 $15 .10 Directions: Calculate how much the following items would cost.
$8.55
$.60
$17.70
a
$3.65
b
1. A robot and a computer
A yo-yo and a pack of gum
2. A pack of gum, a computer, and a robot
2 yo-yos and a robot
Directions: Now pretend you have $25.50 in your pocket. Calculate how much you would have left over if you bought the following items. a
b
3. A computer
A pack of gum
4. A robot
A yo-yo and a pack of gum
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 100
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply and Divide Money When you multiply and divide with money, remember to place the decimal point correctly. $1.32 × 3 6 90 +300 $3.96
Ali bought 3 bags of candy for $1.32 each. How much did he spend?
Directions: Multiply to figure out the total cost. Chocolates
Jelly Beans
$2.22
Candy Bears
Gum Balls
$1.30
a
$.44
$3.12
b
1. 2 bags of gumballs
3 bags of jelly beans
2. 4 bags of chocolates
3 bags of candy bears
Directions: Divide to figure out how much a bag would cost per person. a
b
3. A bag of jelly beans for 5 people
A bag of candy bears for 8 people
4. A bag of chocolates for 6 people
A bag of gumballs for 4 people
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 101
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Multiply and Divide Money Remember to keep an eye on those decimal points.
Directions: Solve. a
b
c
d
e
1.
$3.45 × 6
$4.73 × 4
$6.75 × 7
$5.61 × 3
$3.96 × 2
2.
$7.63 × 5
$5.24 × 8
$8.44 × 9
$2.67 × 4
$5.88 × 6
3.
$16.43 × 2
$21.52 × 7
$17.40 × 3
$36.21 × 5
$24.35 × 8
4.
6 $3.72
5.
8 $5.92
6.
2 $17.04
)
5 $8.45
)
2 $4.56
)
7 $2.66
)
4 $23.12
)
4 $7.04
)
9 $6.48
)
3 $40.71
)
6 $9.06
)
7 $37.66
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
3 $5.61
)
)
5 $7.35
)
8 $13.28
)
)
Date 102
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems Use these word problems to practice for real-life situations.
Directions: Solve using addition or subtraction.
1. Zarina had $5.46 in her pocket when she left home, but now she has only $3.31. How much did she spend?
2. Dr. Moreira went out to lunch with his son. He had a hamburger for $4.99, and his son had a hotdog for $3.59. How much did they spend on lunch?
3. Alexander bought a shirt and a pair of pants for $15.60. If the pants cost $7.30, how much did the shirt cost?
4. Kalila works at a restaurant. She made $24.00 in tips on Friday night and $35.00 in tips on Saturday night. Between the two nights, how much did she earn in tips?
5. In preparation for the party, Amir bought the following items: candles for $1.59, balloons for $3.45, and favors for $6.50. How much did he spend?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 103
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems Here are some money problems with multiplication and division.
Directions: Solve using multiplication or division.
1. Keisha, Aaron, Phillip, and Omar were given a $25.00 reward for finding the lost dog. How much did each of them make?
2. Florencia is going to be paid $9.50 per day for feeding her neighbor’s cat. If she takes care of the cat for 6 days, how much will she make?
3. Selima wants to send postcards to 4 of her friends. If it costs $0.26 to send one, how much will it cost her to send all 4?
4. Five friends went out to dinner. The bill was $27.35. If they split the bill evenly among the five of them, how much will each person owe?
5. At the gas station, the gas is $1.82 per gallon. How much will 7 gallons cost?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 104
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Money Time to practice those money skills.
Directions: Solve. a
b
c
d
e
1.
$6.31 +$2.54
6 $5.52
$12.39 −$1.07
$3.44 × 7
$8.23 +$7.36
2.
$9.46 +$7.42
$4.73 × 4
$2.88 +$7.34
$23.05 −$2.54
3 $8.58
3.
$6.24 × 5
$15.62 −$11.70
7 $4.62
$8.54 −$3.92
$6.07 × 8
4.
$9.44 +$3.27
2 $7.84
$4.85 × 4
$24.35 −$4.99
5 $6.20
5.
$7.36 −$5.42
$8.27 +$3.56
9 $7.65
$4.79 × 7
$6.48 +$11.26
6.
4 $7.36
$2.45 × 9
$18.23 −$8.50
$2.76 +$9.44
$9.46 +$9.37
)
)
)
)
)
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
Date 105
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Money Money, money, and more money!
Directions: Solve. a
b
c
1.
4 $6.32
$9.55 −$7.62
$5.63 +$6.41
2.
$11.26 +$ 4.37
$9.43 × 7
3.
$11.47 × 2
4.
)
e
)
$8.45 × 5
6 $9.84
8 $9.28
$7.94 +$3.27
$17.83 −$ 7.56
$8.07 −$6.13
$7.13 −$6.99
9 $7.38
$4.35 −$4.27
5 $14.35
$9.26 × 3
$7.35 −$5.46
$ 7.33 +$12.84
$5.93 × 9
5.
$23.51 − $ 2.60
$6.97 +$8.46
3 $19.05
$11.52 +$11.64
$13.74 × 5
6.
$25.03 × 7
$26.13 −$ 7.54
$15.27 +$ 8.76
2 $15.26
)
)
)
Name €
d
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
)
)
$34.20 −$16.17
Date 106
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Write Number Sentences A number sentence has two equal sides.
Directions: Complete the number sentence. a
+ 7 = 10
1.
= 16
2.
11+
3.
12 − 4 =
= 24
5.
8×
6.
12 × 5 =
8.
24 ÷
9.
4
10.
27
11. 12.
=8
=3 4 = 16
3+ 9 =
12 + 10 =
+1= 9
10 −
=3
14 −
=6
7− 6 =
4× 4 =
× 5 = 35
× 5 = 45
÷7= 7
7.
6+
− 6 =1
−3= 9
4.
c
b
63 ÷
=7
8×
= 40
8÷ 2 =
36 ÷ 3 =
÷ 10 = 4
4
4=0
4
4 =1
9=3
55
10 = 45
8
9 = 17
6
5 = 30
12
4 = 16
10
6=4
13
3 = 39
27
6 = 21
7
6 = 42
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 107
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Describe Patterns What’s the rule for the pattern?
4, 8, 12, 16, 20 4 + 4 = 8, 8 + 4 = 12, 12 + 4 = 16, 8 + 4 = 16, 16 + 4 = 20 The rule is "add 4." 4 is added to each number to get the next number. Directions: Write the rule for the pattern. a
b
1. 3, 6, 9, 12, 15, 18
50, 44, 38, 32, 26
2. 25, 20, 15, 10, 5, 0
90, 100, 110, 120, 130
3. 1, 2, 4, 8, 16, 32
243, 81, 27, 9, 3
4. 10, 10, 11, 13, 16, 20
2, 8, 32, 128, 512
5. 100, 80, 60, 40, 20
36, 37, 39, 40, 42, 43
6. 1, 3, 9, 27, 81
14, 14, 13, 11, 8, 4
7. 20, 23, 27, 30, 34
1,024, 256, 64, 16, 4
8. 48, 24, 12, 6, 3
0, 100, 200, 300, 400
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 108
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Complete Patterns You can figure out the rule for a pattern, then complete it.
, 12, 18,
, 30,
, 42,
Rule: add 6. 6, 12, 18, 24, 30, 36, 42, 48
Directions: Complete the pattern. 1. 10, 2. 0, 3. 4. 64, 5. 30, 29, 6. 1, 4,
, 16, 19, , 14, 21, , 100, 150, , 16, 8,
, 25, 28, , 35,
, 49
, 250, ,
, 350 ,1
, 24,
, 15, 9,
, 16, 25,
, 49,
7. Zarina is doing laps around the track. She runs for 3 laps then walks for 4 laps. Figure out how many laps she did by filling in the pattern below. 3, , , , , , , , , Run Walk Run Walk Run Walk Run Walk Run Walk = Total 8. Classes at Desmond’s school run for 55 minutes with a 5-minute break in between. Write the school schedule for when one class ends and the next begins. 9:30, , , , , , , , , , Begin End Begin End Begin End Begin End Begin End
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 109
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Write Equations Equation is another word for number sentence. Equations have two equal sides. 10 minus a number equals 5: 10 − n = 5 A number divided by 2 equals 4: n ÷ 2 = 4 Directions: Write equations. Use n to stand for the missing number. a
b
1. 3 less than a number is 5:
The sum of 8 and a number is 12:
2. A number times 6 is 36:
24 divided by a number is 3:
3. The product of 4 and a number
The difference between 10 and another
is 28:
number is 5:
4. 3 more than a number is the same as
2 less than twice a number is 8:
2 + 5: 5. 12 plus a number is 15:
10 times a number is 50:
6. 7 subtracted from a number is 7:
A number divided by 7 is 7:
7. A number multiplied by 12 is 60:
The sum if 6 and a number is the same as the product of 5 and 2:
8. 6 less than 11 + 9 is a number:
4 more than a number divided by 2 is 7:
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 110
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Equations To solve an equation, get the missing number alone on one side.
One Step Solve: n + 7 = 10 Subtract 7 from both sides. n + 7 − 7 = 10 − 7 n = 10 − 7 n=3
Two Steps Solve: 8 + n − 5 =14 n + 3 = 14 Subtract 3 from both sides. n + 3 − 3 = 14 − 3 n = 11
Directions: Solve for n. a
b
c
1.
n+4=9
n + 7 = 19
n-6=4
2.
n + 4 = 10
n+7=7
9 + n = 14
3.
n + 7 = 13
20 + n = 12
n + 26 = 30
4.
n - 8 = 10
16 - n = 7
11 + n = 21
5.
25 - n = 20
n-5=4
3-2=n
6.
14 + n = 14
n+3=7+5
n - 12 = 21
7.
n + 8 = 10 + 8
n + 6 - 4 = 14
8-n+5=6
8.
5+n=2+6
n+4=3+3
n + 1 = 10 - 2
9.
11 - n = 7 - 3
n - 6 = 12 + 4
7 + n = 15 - 3
14 + n - 3 = 17
18 - n = 17 - 3
20 - 5 + n = 23
10. Name
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 111
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Equations To solve equations with multiplication, use division.To solve equations with division, use multiplication. One Step Solve: n ÷ 8 = 6 Multiply both sides by 8. n÷8×8 =6×8 n=6×8 n = 48
Combine Terms Solve: 2n + 3n = 10 5n = 10 Divide both sides by 5. 5n ÷ 5 = 10 ÷ 5 n=2
Directions: Solve for n. a
b
c
1.
3n = 9
5n = 20
n÷5=5
2.
6n = 36
n÷7 =6
3.
7 n = 28
n =2 3 n÷9= 4
4.
n =4 4
8n = 56
n ÷ 3 = 10
5.
5n = 25
4n = 48
6.
2n + 2 = 8
n =3 6 3n +1 = 10
n÷9=7
7.
4n − 8 = 8
5n + 3 = 18
3n + n = 24
8.
n ÷ 7 = 11
2n + 9 = 13
6 + 3n = 27
9.
2n + n = 9
4n − n = 6
n ÷ 3 = 15
4n + 3n = 49
3n +1 = 2n + 6
4n − 4 = 3n + 3
10. Name
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
2n = 10
Date 112
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Write Equations You can write a number sentence before you solve an equation. Directions: Write a number sentence using n for the missing number. 1. Talia had some crayons, but she used up 7. She has 18 crayons now. How many did she start with?
2. There were 15 birds sitting on a wire. Some more birds arrived and now there are 25. How many more birds arrived?
3. A flower grew 10 centimeters in a week. Now it is 30 centimeters high. How high was it a week ago?
4. Simon checked out many books from the library, but he returned 7. Now he has 13 library books at home. How many did he check out originally?
5. Tracy read 2 times as many pages as Liz did. If Tracy read 12 pages, how many pages did Liz read?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 113
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Equations Here’s a chance to show what you know about patterns and equations.
Directions: Fill in the missing numbers. a
1. 1, 2. 4, 8, 3. 1,
b
,100, , , 5,
, 10,000, 100,000
2,
,
, 20, 24
6, 12, 18, 24,
, 9, 11
9,
,
, 8, 10, 12 , , 36, 45, 54
Directions: Complete the number sentence. a
b
c
4.
16168 =8 2= 2
24246 =6 30 = 30
49 497 =77= 7
5.
56567 =7 8= 8
64648 =8 8= 8
72 728 =89= 9
6.
45459 =9 5= 5
36362 =2 72 = 72
48 483 =345 = 45
Directions: Solve for n. a
b
c
7.
2n − 1 = 7
n+5=5
3n = 36
8.
n =2 2
10n +1 = 11
10n −1 = 9
9.
7 n = 49
16 − n = 12
2n + n = 6
Directions: Write an equation to solve. 10. After 8 fish were moved to another tank, there were 7 left. How many fish were in the tank to start? 11. Jim is one year older than twice Ken’s age. If Jim is 15, how old is Ken? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 114
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Time It’s time to learn about time.
60 seconds = 1 minute 60 minutes = I hour 24 hours = 1 day 7 days = 1 week
11 12 1 10
2
9
3
8
4 7
5
6
4:10 or 10 minutes after 4
Directions: Fill in the blank. a
b
11 12 1 10
11 12 1
2
9
10
3
8
4 7
6
2
9
3
8
5
4 7
6
5
1. 7:15 means
minutes after
3:45 means
minutes before
2. 9:05 means
minutes after
6:50 means
minutes before
8:17 means
minutes after
3. 10:35 means 4. 48 hours =
minutes before days
180 seconds =
days = 2 weeks
5.
minutes
hours = 3 days
Directions: Use the calendar to answer the questions. NOVEMBER Sun
a
Mon
Tue
Wed
1
2
Thur 3
Fri 4
Sat 5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
6. How many days are there in the month
b
The first Sunday is what date?
of November? 7. What day of the week is the 14th?
How many Thursdays are there in November?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 115
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Read Time On a clock with hands, the darker lines stand for 5 minutes, and the lighter ones stand for 1 minute. 123 4
11 12 1 10
Digital
56
7
8
2
9
9
Minutes
10
Analog
3
8
4 7
6
Hours
5
Directions: Write in the time shown on the digital clock. a
1.
11 12 1 3 4
8
2.
11 12 1 2
10 9 7 6
7 6
3 4
7 6
5
3 4 7 6
5
11 12 1 2
8
3 4
8
5
10 9
2
10 9
11 12 1 2
8
3 4
8
11 12 1
11 12 1 2
10 9
5
10 9 7 6
c
b
2
10 9
3 4
8
5
7 6
5
Directions: Draw the hands to show the time given on the digital clock. a
c
b
3. 11 12 1
11 12 1 2
10 9
3 4
8 7 6
3 4
8
5
11 12 1 2
10 9 7 6
2
10 9
3 4
8
5
7 6
5
4. 11 12 1
11 12 1 2
10 9
3 4
8 7 6
5
3 4
8 7 6
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
11 12 1 2
10 9 5
2
10 9
3 4
8 7 6
5
Date 116
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Time Intervals The clock hands move as time changes. 9:25
25 minutes later, 9:50
11 12 1 2
10 9
3 4
8 7 6
11 12 1 2
10 9
3 4
8 7 6
5
5
Directions: Write the new time. a 11 12 1
1.
11 12 1 2
10 9
3 4
8 7 6
7 6
3 4 7 6
7 6
30 minutes later
5
3 4 7 6
1 hour later
5
10 minutes ago
11 12 1 2
8
3 4
8
5
10 9
2
10 9
11 12 1 2
8
3 4
8
11 12 1 10 9
11 12 1 2
10 9
5
20 minutes later 2.
c
b
2
10 9
3 4
8
5
7 6
6 minutes ago
5
2 hours ago
Directions: Draw the hands to show the new time. a
3.
11 12 1
11 12 1 2
10 9
3 4
8 7 6
7 6
3 4 7 6
7 6
2 minutes after 7:43
5
20 minutes after 2:07
3 4 7 6
5
35 minutes before 11:45
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
5
1 hour before 3:25 11 12 1
2
8
3 4
8
5
10 9
2
10 9
11 12 1 2
8
3 4
8
11 12 1 10 9
11 12 1 2
10 9
5
30 minutes after 9:40 4.
c
b
2
10 9
3 4
8 7 6
5
3 hours after 6:15 Date
117
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Time Intervals Fredrick started his homework at 7:30 and finished at 9:15. How long did it take him?
11 12 1
11 12 1 2
10 9
3 4
8 7 6
5
2
10 9
3 4
8 7 6
1 hour and 45 minutes
5
Directions: How long did it take? 1. Kelsey started her bike ride at 3:20 and finished at 4:00. 2. It started to rain at 5:30 and stopped raining at 7:05. 3. The movie began at 6:15 and ended at 8:50. 4. Sabrina started mowing the lawn at 12:20 and finished at 1:05. 5. The plane took off at 10:10 and landed at 11:11. 6. The soccer game began at 2:10 and ended at 4:15. 7. Ashoke got to work at 9:00 and left at 4:00. 8. Briand started the 5K race at 11:02 and finished at 11:23. 9. Kent got to the restaurant at 7:30 and left at 9:08. 10. The play starts at 5:00 and ends at 7:15. 11. Elaine started her homework at 3:10 and finished at 5:00. 12. The sun set at 6:25 and rose at 5:45. Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 118
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add Intervals of Time When you add time, think 60 minutes = 1 hour.
Sarah spent 45 minutes walking her dog on Monday and 35 minutes walking her dog on Tuesday. How much time did she spend walking her dog over the two days? 45 minutes + 35 minutes = 80 minutes or 1 hour and 20 minutes
Directions: Add the time intervals to solve. 1. Cameron stirred the soup for 15 minutes and his mom stirred it for 25 minutes.Together how long did they stir the soup?
2. Tyler has guitar on Mondays for 50 minutes and piano on Thursdays for 50 minutes. How much time does he spend in lessons each week?
3. Genevieve painted for 2 hours yesterday and for 1 hour and 20 minutes today. How much time did she spend working on her painting?
4. In the morning it takes Gloria 10 minutes to take a shower, 10 minutes to put on her clothes, and 15 minutes to eat breakfast. How long does it take her to get ready for school?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 119
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Duration Thinking about how long it takes to do something helps you understand time.
Directions: Circle the unit of time that fits best. 1. How long does it take to eat dinner? minutes hours days 2. How long does it take a baby to become an adult? minutes days years 3. How long does it take to count to five? seconds hours days 4. How long does it take to put on your clothes? minutes hours months 5. How long does it take to grow a plant? seconds minutes months 6. How long does it take to get from first grade to college? days months years 7. How long does it take to tell your mom you love her? seconds hours days 8. How long does it take to write a letter? minutes days years 9. How long does it take to peel an orange?? minutes weeks days Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 120
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Lengths (Customary) In the U.S. we usually use the Customary System.We measure length using inches, feet, yards, and miles.
Directions: Fill in the blank to describe the length or distance. a
b
1. A book
A football field
2. From the U.S. to France
A car
3. From New York to Chicago
A pizza
4. A ladder
A tennis court
Directions: Circle the number that best estimates the measurement. a
b
5. The height of a dog
The width of a classroom
2 inches 2 feet 20 feet
5 inches 5 feet 5 yards
6. The distance from San Francisco to Los Angeles
The length of a piece of paper 11 inches 11 feet 11 yards
4 yards 4 miles 400 miles 7. The distance Mike threw the football 2 feet 20 yards 2 miles
The length of a paper clip 1 inch 10 inches 1 foot
8. The distance from Miami to Washington, D.C.
The length of a desk 4 inches 4 feet 4 yards
10 inches 10 feet 1,000 miles
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 121
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Lengths (Customary) Now let’s get out those rulers.
1
2
3
4
5
Directions: Use a ruler to measure each object in inches. 1.
2.
3. CRAYON
4.
5.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 122
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Convert Lengths Use division to convert lengths.
12 inches (in) = 1 foot (ft) 3 feet (ft) = 1 yard (yd) 5,280 feet (ft) = 1 mile 50 inches = 4 feet 2 inches Remember: 12 inches = 1 foot, so divide 50 by 12 Directions: Use the information above to convert. a
b
1. 24 in =
ft
2. 30 in =
ft
3. 5,280 ft =
17 ft = 9 ft =
in mile
yd
ft
yd
48 in =
ft
4. 18 ft =
yd
16 in =
ft
in
5. 60 in =
ft
10 ft =
yd
ft
6. 63 in =
ft
15 ft =
yd
7. 36 in =
ft
52 in =
ft
8. 19 ft =
yd
36 in =
yd
27 ft =
yd
20 ft =
yd
9. 10,560 ft = 10. 73 in =
in
ft mi
ft
in
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
in
ft
Date 123
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add and Convert Lengths After you add lengths, sometimes you have to convert.
The skirt was 1 foot 8 inches long, but Jana added 6 more inches. Now how long is it? 1 foot 8 inches + 6 inches = 1 foot 14 inches = 2 feet 2 inches
Directions: Add the measurements, then convert them. 1. When Francine was 10 she was 4 feet 7 inches tall. Four years later she had grown 8 more inches. How tall was she at 14?
2. Adrian’s garden was 4 yards 2 feet long, and he added another 1 yard 2 feet to it. How many yards and feet long was it then?
3. The barn was 10 feet 4 inches long, but Pete decided to extend it by 2 feet 8 inches. How long was it then?
4. Lyle walked 2,200 feet and Alexa walked 3,080 feet.Together, how far did they walk?
Directions: Add, then convert. a
b
5. 7 ft 3 in + 9 in =
10 in + 11 in =
6. 21 ft 2 in + 10 in =
3 yd 2 ft + 2 ft =
7. 10 ft 3 in + 12 ft 4 in =
6 ft 7 in + 5 ft 9 in =
8. 5 yd 2 ft + 7 yd 1 ft =
21 ft 4 in + 12 ft 10 in =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 124
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Lengths (Metric) The metric system is used all over the world to measure length in centimeters (cm), meters (m), and kilometers (km).
Directions: Fill in the blank with centimeters, meters, or kilometers to describe the length or distance. a
b
1. A marker
From your town to the next
2. The height of a house
The length of your finger
3. From Africa to Asia
The length of a ship
4. The width of a computer screen
The width of your bedroom
Directions: Circle the number that best estimates the measurement. a
b
5. The height of a man
The distance from New York to Boston
2 cm 2 m 2 km
35 cm 35 m 350 km
6. The length of a shoe
The height of an office building
20 cm 20 m 2 km
30 cm 30 m 3 km
7. The distance from St. Louis, MO, to Austin,TX
The width of a table 70 cm 70 m 7 km
1,400 cm 1,400 m 1,400 km
8. The length of a parking lot
The length of a foot race
80 cm 80 m 80 km
10 cm 10 m 10 km
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 125
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Lengths (Metric) Time to measure in centimeters.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Directions: Use a ruler to measure each object in centimeters. 1. LIP GLOSS
CRAYON
2.
3.
4.
5.
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 126
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Convert Lengths Converting metric lengths is simple.
10 millimeters (mm) = 1 centimeter (cm) 100 centimeters (cm) = 1 meter (m) 1,000 meters (m) = 1 kilometer (km) Directions: Use the information above to convert. a
b
1. 2,000 m =
km
50 mm =
cm
2. 800 cm =
m
34 mm =
cm
3. 720 cm =
m
4. 90 mm =
cm
5.
m = 6 km
6.
mm = 30 cm
7. 290 cm = 8.
4,000 m =
km
200 cm =
m
cm = 9 m
m
5,300 m = cm
m
m
cm = 7 m 20 cm cm
cm = 9 m 3 cm
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
km
mm = 5 cm 3 mm
m = 3 km 400 m
9. 290 cm = 10.
cm
mm
233 cm =
m
5,300 m =
km
cm m
Date 127
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Add and Convert Lengths Now let’s add and convert with metric units.
The scarf Ana was making was 1 m 70 cm long. Then she knitted 60 cm more. How long was it then? 1 m 70 cm + 60 cm = 1 m 130 cm = 2 m 30 cm
Directions: Add the measurements, then convert. 1. The tear in Helen’s sock was just 2 cm 7 mm long, but then it ripped 9 mm more. How long is the tear now?
2. The basketball player was 1 m 60 cm tall in high school, but he grew 50 cm. How tall is he now?
3. The road workers fixed 2 km 500 m of the road last year and 3 km 700 m this year. How much of the road did they fix in all?
4. The new addition will increase the length of the house by 4 m 30 cm. If it was 10 m 80 cm long before, how long is it now?
Directions: Add then, convert. a
b
5. 8 m 50 cm + 70 cm =
20 cm 3 mm + 8 mm =
6. 4 km 300 m + 900 m =
13 m 40 cm + 3 m 60 cm =
7. 7 cm 8 mm + 2 cm 6 mm =
8 km 600 m + 4 km 500 m =
8. 21 m 30 cm + 10 m 80 cm =
32 cm 5 mm + 6 cm 7 mm =
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 128
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Perimeter Perimeter is a measure of the distance around an object. 8 ft 3 ft
3 + 8 + 3 + 8 = 22 ft
3 ft 8 ft
Directions: Find the perimeter. Don’t forget to label your answer. 1.
4m 2m
2m
4+2+4+2
m
=
4m
2. 5 in
5 in
=
3 in
3.
6 ft 6 ft
=
6 ft 6 ft
4.
3 cm
3 cm
3 cm
=
3 cm 3 cm
5.
6 mm
8 mm
=
10 mm
4m
6. 2m
2m
=
4m
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 129
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Perimeters Sometimes the sides of an object have equal lengths so, they’re not labeled. 8m
These marks tell you which sides are equal. 6 + 8 + 6 + 8 = 28 m
6m
Directions: Find the perimeter. Use the marks to find the lengths of the unlabeled sides. 4 in
1.
in
4+4+4+4+4 =
2.
6 ft
=
3.
7 cm 3 cm
=
4. 9m
5.
=
4 mm 2 mm
=
7 mm 1 in
6.
6 in
=
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 130
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Understand Area To find the area, multiply the length by the width. 6 cm 3 cm
3 x 6 = 18 square centimeters (sq cm)
Directions: Find the area of the shape. Remember to label your answer in square units. 1.
2.
4m
4x4
8 ft 9 ft
3.
sq m
=
=
7 mm
=
2 mm
4.
3 cm
=
5. 24 in
6.
=
60 in
= 2 yd
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 131
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Find Areas Sometimes you have to convert before you find the area.
2 ft 48 in
48 ÷ 12 = 4 Dimensions: 2 ft x 4 ft Area: 2 x 4 = 8 sq ft
Directions: Convert the dimensions and find the area. 1.
30 mm
=
sq cm
=
sq m
=
sq ft
=
sq cm
=
sq ft
=
sq ft
2. 2m 500 cm
3. 36 in 4 ft
4.
60 mm 9 cm
5.
6.
24 in
60 in
2 yd
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 132
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems Use what you know about perimeter and area to solve these problems.
Directions: Solve by finding the perimeter or area. Drawing a picture may help. 1. Erika and her dad are going to build a fence around her new garden.The dimensions of the garden are 6 m by 8 m. How much fencing should they buy?
2. Calvin walked all the way around the field. If the field is square, and it’s 35 yards long on one side, how far did he walk?
3. Leahann is going to wallpaper one wall of her room that is 7 feet high by 12 feet wide. How many square feet of wallpaper will she need?
4. Heidi is going to cover the front of her textbook with stickers.The book is 9 inches wide and 11 inches long. How many square inches of stickers will she need?
5. Leo is putting a border around the wooden box that he built.The box is 32 cm long and 20 cm wide. How much material does he need to make the border?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 133
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Solve Word Problems These word problems are a little more tricky—read carefully.
Directions: Solve. Drawing a picture may be helpful. 1. Grandma is making some new curtains for the front window.The window is 6 feet by 7 feet, and she bought 40 square feet of fabric. Did she buy enough to cover the window?
2. The perimeter of a rectangular building is 150 feet. If one side is 50 feet long, how long is the other side?
3. Evelyn ordered 30 square meters of carpeting to put in the living room. If the room is 6 meters long, how wide must it be if she bought exactly the right amount of carpeting?
4. Desmond wants to make two birthday cards out of the same piece of construction paper. If the paper is 20 cm long by 10 cm wide, can he make two cards that are 10 cm square?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 134
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Measurements Review time has arrived.
Directions: Show the time on the digital or analog clock. a
1.
c
b
11 12 1 2
10 9
3 4
8 7 6
5
11 12 1
11 12 1 2
10 9
3 4
8 7 6
2
10 9
3 4
8
5
7 6
5
2. 11 12 1 3 4
8 7 6
3.
11 12 1 2
10 9
7 6
11 12 1 3 4
8 7 6
7 6
5
50 minutes after 8:30
3 4 7 6
5
11 12 1 2
8
3 4
8
5
10 9
2
10 9
11 12 1 2
10 9
3 4
8
5
11 12 1 2
10 9
5
45 minutes before 7:20
2
10 9
3 4
8 7 6
5
3 hours after 10:55
Directions: Answer the questions. 4. The Keegans got in the car at 7:15 in the morning and arrived at Aunt Jenny’s house at 2:00 in the afternoon. How long did the trip take?
5. Juanita read for 2 hours and 20 minutes and Tina read for 1 hour and 45 minutes. How long did they read altogether? Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 135
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Review Measurements One more look at dimensions.
Directions: Find the dimensions of each shape. 1.
Perimeter
=
ft
Area
=
sq ft
Perimeter
=
m
Area
=
sq m
Perimeter
=
ft
48 in
Area
=
sq ft
50 mm
Perimeter
=
cm
Area
=
sq cm
24 in
2.
700 cm 300 cm
3.
36 in
4.
Directions: Solve. Draw a picture if necessary. 5. The perimeter of a rectangular room is 50 feet. If one side is 11 feet long, how long is the other? 6. Fran bought 90 square meters of patio carpet. If the patio is 12 meters by 8 meters, did she buy enough? 7. Ethan and Marie are going to put in a new carpet on the floor of their bedroom and a new border around the base of the wall. If the room is 10 feet by 9 feet, how much carpeting and how much border material will they need?
Name Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
Date 136
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Students
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
num ber sen se add pp. itio 6np 22 p. 2 sub 3 -3 tra 5 ctio np add p. 3 itio 6na 49 nd fra sub ctio tra ns ctio pp. np mu 55 p. 5 ltip -6 0lica 4 54 tio np div isio p. 6 np 5p. 8 79 mu 0ltip 9 2 lica tio na op era nd tio div ns isio wit equ np hd p. 9 atio eci 3ns ma 96 p l p s me . 10 p p. 9 asu 7 7 rem 114 -1 ent 06 pp. 115 -1 36
Scope and Sequence
137
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Answer Key PAGE
1. 2. 3. 4.
PAGE
1. 2. 3. 4. 5. 6.
PAGE
5. 6. 7. 8. 9. 10.
735 399 4,214 5,608 48 941
7. 8. 9. 10. 11. 12.
thousands, tens 0 2 tens 2 hundreds, tens
8
452 7,629 3,003 2,055 4,213 825 641 1,050 2,300 8,520 2,000+400+90+1
PAGE
948 406 880 9,020 125 5,023
7
5 9 1 4 tens ones
PAGE
1. 2. 3. 4. 5. 6.
6
416 166 332 503
7. 8. 9. 10. 11. 12.
900+5 20+6 9,000+200+4 2,000+200+10+2 4,000+1 500+90+9
10
1. 29 is between 20 and 30 and rounds to 30. 2. 45 is between 40 and 50 and rounds to 50. 3. 63 is between 60 and 70 and rounds to 60. 4. 142 is between 140 and 150 and rounds to 140. 5. 756 is between 750 and 760 and rounds to 760. 6. 50 60 100 30 7. 20 20 80 60 8. 70 30 80 90 9. 120 270 390 450 10. 360 520 900 970 PAGE
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
11
800 100 2,000 300 1,200 4,300 2,000 13,410 700 1,000
1,300 9,300 800 5,600 900 1,000
6,900 600 4,900 800 6,700 300
11. 8,000
500 5,300 800 2,500 3,300 1,900
12
PAGE
seven hundred thirty-two; 700+30+2 905; 900+5 two hundred thirty-nine; 239 2,056; 2,000+50+6 9 8 thousands ones 193; 432; 455 162; 261; 621 905; 1,052; 1,205 432; 433; 623 679; 699; 701 143; 271; 1,003 5,668; 6,212; 7,012 909; 990; 999
PAGE
1/8 1/2
3/8 7/10
< > 1/4><2/4 4. 5/6 5. 3/6 6. 5/9
PAGE
0.5 0.4 0.2 0.1
> < 3/6<6/9
< > 1/2>3/7
0.8 0.2 0.9 0.7
5. 0.6 6. 0.7 7. 0.8
0.3 0.1 1.0
0.23 0.83
0.51 0.4
4.
1. 2. 3. 4. 1. 2. 3. 4. 5.
19
4/10=0.4 75/100=0.75 < <
PAGE
11 10 14 9 11
PAGE
22
0.4 1.0 0.2
20
5/7>4/7 3/8<6/8 3/5>3/6 2/9<3/9 0.4<0.5 0.7>0.1 0.6 6/9 or 2/3
8/10=0.8 2/10=0.2 < >
23 13 12 12 7 11
8 10 6 12 6
12 5 6 12 12
6. 7. 8. 9. 10.
9 4 6 11 8
10 17 18 8 8
7 14 15 16 10
9 15 8 3 16
24
1. 7+3=10 9+2=11 2. 4+8=12 3+6=9 3. 6+(5+2)=6+7=13 9+(7=3)=9+10=19 4. 8+(4+3)=8+7=15 6+(9+1)=6+10=16 5. 5+0=5 0+7=7 10+0=10 PAGE
18
1. 0.35 2. 0.16 3.
PAGE
1. 2. 3. 4. 5.
17
0.3 0.9 0.5 0.4
0.4 8,000+300+50+9 806 0.9 87/100
1/6; 1/4; 1/3 8,999; 9,008; 10,001 3,979; 4,873; 6,214 0.89; 0.9; 0.98 29/100; 0.34; 4/10 6/7; 8/9; 9/10 123; 1,230; 12,230 7/100; 70/100; 77/100 5/8; 5/6; 5/5 0.09; 0.21; 0.4 7.900 2 1/8 8,000 7 0.6 thousands, ones
PAGE
16
1. > 2. > 3. 4/5<7/8 1. 2. 3. 4.
> > 5/8<6/8
15
1. 4/9 2. 1/8 3. 5/7
PAGE
6. 7. 8. 9. 10. 11. 12. 13.
14
1. < 2. < 3. 4/5>2/5
PAGE
21
< < < < > = < < = < > > > < < > = > > < 40+5 53/100 nine-tenths 2/3 481
PAGE
3. 4. 5.
4.
PAGE
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
1. 68;168; 1,068 2. 0.2; 0.4; 0.9
13
1. 3/4 2. 4/5 3.
PAGE
9
1. > < = > 2. > < < > 3. > > < > 4. < < > < 5. > = < > 6. < < > = Some answers will vary for items 7 - 12. Example answers are listed below. 7. 84 913 12 48 8. 599 16 204 90 9. 30 107 63 56 10. 66 7+7 100 339 11. 13 849 80 16 12. 1,000 16 251 434 PAGE
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
12 8 0 9 10 9 15 14 7 6 16 11
PAGE
1. 2. 3. 4. 5.
25 9 11 6 5 17 6 10 11 11 10 14 8
4 7 7 9 9 10 12 14 8 6 7 7
10 12 10 7 5 10 5 12 18 17 4 18
13 2 9 9 11 8 8 15 7 8 8 7
10 13 10 11 12 6 14 10 12 9 12 16
26
17 18 19 28 44 18 59 39 26 25 56 48 19 flowers 39 pieces of fruit
12. 6,460
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
138
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
PAGE
1. 2. 3. 4. 5. 6. 7.
PAGE
1. 2. 3. 4. 5. 6.
1. 2. 3. 4. 5. 6. 7.
72 107 121 102 121 119
72 62 82 96 55 70 96
35 41 52 34 81 55 84
51 97 98 101 87 94
57 84 97 98 103 110
90 95 90 128 121 99
70 91 108 157 141 103
337 633 505 700 547
729 899 785 502 734
849 940 560 752 806
638 782 971 681 971
30 898 679 904 473 985 812 790 705 952 462 979 1,087 1,202 1,224
839 817 936 1,029 884 1,419 1,050
338 669 970 900 980 658 890 971 831 856 864 1,074 1,522 1,906
31 3,955 4,659 8,772 7,581 5,653 1,374 2,671 1,184 4,900 5,440 6,995 6,810 5,814 8,742
7,630 6,450 2,950 6,381 7,399 3,580
PAGE
6,981 6,075 8,558 9,389 7,074 9,408 8,219 7,807 9,516 8,810 8,070 9,571 7,813 12,201
6,986 3,688
1. 2. 3. 4. 5. 6. 7.
9,991 7,812 9,026 9,841 6,612
11,592
8,505 7,406
8,303 17,103
4,686 8,940 2,917 9,873 4,082 1,601 9,660 9,467 4,622 7,920 4,043 6,042 7,323 10,307
1. 2. 3. 4. 5. 6. 7. 8.
PAGE
7,663 1,617 8,516 2,743 2,841 4,023
95 490 705 203 837 3,980 1,025 7. 3,003 9,700 8. 5,128 5,496 1. 2. 3. 4. 5.
5 10 1 2 4
PAGE
37
7,018 2,490 8,209 9,113
PAGE
5,697 6,993 6,175 4,984 7,012 2,987 5,162 6,282
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
1. 2. 3. 4. 5.
176 113 110 2,265 715 711
402 85 245 181 1,220 7,818
131 113 140 533 3,801 1,539
110 255 274 468 540 1,720
120 140 140 401 369
1 5 7 1 4 10 1 17 13 11 0 9
2 7 1 7 9
6. 7. 8. 9. 10.
3 14 6 7 5
3 5 3 8 7 9 7 7 11 2 10 10
1 4 9 1 1 0 1 3 4 1 17 2
38
12 12 10 23 31 24 40 31 11 31 52 23 21 geese 30 apples
139
26 78 38 87 29 76 89
5 5 16 2 11
1 7 4 16 6
1 12 4 10 3
1 2 6 2 3 8 7 3 10 16 15 9
5 3 1 8 6 4 2 6 11 6 8 1
18 68 89 29 69 58 26
49 59 63 48 88 29 35
40 3+7=10 or 7+3=10 10-3=7 or 10-7=3
6+9=15 or 9+6=15 15-6=9 or 15-9=6
2. 6+6=12 or 12-6=6 7-3=4 or 7-4=3
3+4=7 or 4+3=7 9-1=8 or 9-8=1
1+8=9 or 8+1=9
3. 5+6=11 or 6+5=11 11-5=6 or 11-6=5
3+10=13 or 10+3=13 13-3=10 or 13-10=3
5+9=14 or 9+5=14 14-5=9 or 14-9=5
4. 2+6=8 or 6+2=8 8-2=6 or 8-6=2
6+13=19 or 13+6=19 19-6=13 or 19-13=6
7+8=15 or 8+7=15 15-7=8 or 15-8=7
5. 11+11=22 or15+16=31 or 7+9=16 or 22-11=11 16+15=31 9+7=16 31-15=16 or 16-7=9 or 31-16=15 16-9=7
1. 2. 3. 4. 5. 6. 1. 2. 3. 4. 5. 6. 7. 1. 2. 3. 4. 5. 6. 7.
38 39 100 9 25 29
58 57 67 36 13 25
47 56 57 11 9 28
36 85 83 22 17 65
21 45 5 15 19 20 30
13 16 17 9 9 3 16
9 22 16 6 19 19 29
18 24 9 34 9 38 26
14 19 27 17 27 19 29
237 868 192 94 616 278 508
667 249 103 337 652 571 830
153 476 338 182 624 872 408
377 196 536 777 234 827 174
226 393 515 747 487 696 777
42
23 3 19 23 55 27 14
PAGE
7+18=25 or 18+7=25 25-7=18 or 25-18=7
41
46 62 66 47 28 31
PAGE
6 2 4 4 0 1 11 1 19 13 8 11
56 27 19 68 72 43 54
1. 4+5=9 or 5+4=9 9-4=5 or 9-5=4
PAGE
2 3 3 2 2
39 15 28 58 49 19 61
6. 10+24=34 or 5+14=19 or 24+10=34 14+5=19 34-10=24 or 19-5=14 or 34-24=10 19-14=5
2,120 9,211 4,751 2,856 10,751 7,007 5,070 12,731
36
4 5 6 1 7
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
2,357 5,759
35
1. 2. 3. 4. 5. 6.
PAGE
83 313 658 335 113 7,667
39
15 38 47 28 37 58 89
PAGE
8,840 7,412
34 58 187 92 96 395 465 82 145 192 100 93 760 286 124 586 820 1,548 739 624 6,600 4,987 133 311 500 1,395 7,370 975 546 8,870 733 3,641 6,092 4,991 6,513 2,302 4,631 7,390 13,500 2,245 8,810 13,713 10,503
4,950 3,750
32
1. 6,467 7,652 2. 7,840 4,560 3. 1,835 8,518 4. 3,727 4,714 5. 8,516 10,170 6. 6,301 7,815 7. 5,322 3,231
33
1. 8,087 8,991 2. 7,010 7,105 3. 6,188 7,661 4. 11,598 8,070 5. 6,681 11,107 6. 9,824 9,479 7. 5,504 7,565 PAGE
625 444 988 777 484
1. 1,359 3,303 2. 2,792 4,666 3. 9,453 4,962 4. 8,703 2,962 5. 3,885 9,905 6. 4,423 3,490 7. 7,373 9,472 PAGE
58 92 51 70 91 31 80
29
577 756 483 920 1,241 911 1,252
PAGE
60 83 34 38 84 56 90
28
539 776 855 345 910
PAGE
PAGE
31 51 76 90 42 81 61
78 81 134 119 132 144
PAGE
1. 2. 3. 4. 5.
27
26 42 22 40 33 60 70
43
459 331 832 629 862 381 231
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Answer Key PAGE
1. 2. 3. 4. 5. 6. 7.
44
221 291 108 291 176 219 476
PAGE
35 293 143 145 757 167 288
142 220 213 219 405 87 597
8,412 2,113 1,213 8,061 6,277 8,908 2,534 3,229 6,005 2,574 2,792 1,669 1,749 3,279
2,428 8,149 6,069 5,365 4,180 8,575 5,305 6,079 2,645 7,888 8,577 5,369
5,522 6,101
PAGE
1. 2. 3. 4. 5.
5,802 5,002 7,221 1,019 4,019 4,313
PAGE
6,745 8,879
5,243 3,959
5,066 5,922
7,155 6,185
8,814 3,563
2,276 3,343
35
414
8
219
193
553
759
425
464
78
18
9,374 183
1,272
844
326
154
4,792
1,389
2,744
1,907
6,448
1,049
3,188 1,928
22
43
47
12
229
474
15
10
429
165
406
618
708
289
247
187
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
PAGE
1. 2. 3. 4. 5. 6. 7.
47
1. 2. 3. 4. 5. 6. 1. 2. 3. 4.
2,449
67 80 887 708 693
88 499 151 749 979
4,137 2,716
202 328 559 643 816
263 122 974 657 814
417 378 573 970 908
51
4/6=2/3 7/7=1 8/12=2/3 8/10=4/5
4/10=2/5 4/8=1/2 3/9=1/3 5/5=1
5/8 4/9 7/10 5/8
7/12 1/7 1/8 2/11
2/4=1/2 4/8=1/2 3/12=1/4 6/8=3/4
2/8=1/4 8/10=4/5 5/10=1/2 3/6=1/2
60
10/12=5/6 2/6=1/3 6/9=2/3 4/12=1/3
PAGE
7/9 5/8 6/7 7/10
59
1/6 1/4 1/3 5/9
61
1. 3/4 of a can 3. 5/7 of the blocks 2. 5/9 of the book 4. 7/12 of the pizza
PAGE
53 86 202 204 996 522
22 132 178 742 442
155 55 23 390 9,412
59 370 275 154 935
287 69 694 1,689 646
15 5,612 902 246 1,918
222 75 5,083 1,252 166
122 390 479 649 7,399
54
55
140
1. 2. 3. 4.
5/7 11/12 5/9 7/8
58
6/8=3/4 9/12=3/4 2/6=1/3 4/12=1/3
PAGE
2/4=1/2 8/12=2/3 4/10=2/5 3/12=1/4
62
1. 1/3 of a jar 4. 2/3 of a pack 2. 2/3 full 5. 4/11 of his money 3. 1/2 of a pizza
3. 45 miles 4. 135 cm
3/4=6/8 1/2=3/6 2/4=4/8 2/3=8/12
1. 2. 3. 4.
2/8=1/4 2/10=1/5 6/9=2/3 8/10=4/5
57
3/4 5/6 9/11 2/3
PAGE
3. 70 apples 4. 101 pages
52
1/3=3/9 1/4=2/8 3/4=9/12 1/2=5/10
PAGE
1. 2. 3. 4.
56
4/6=2/3 3/9=1/3 4/12=1/3 6/12=1/2
PAGE
50
127 69 1,426 528 117 104 1,580 679 3,880 3,306 42 blocks
PAGE
495
4,076 6,773 8,487
1,264 608
1. 2. 3. 4.
PAGE
6,196 1,777 7,628 2,881
12 39 278 81 304 351 69 221 4,597 684 40 birds 35 cards
PAGE
235
PAGE
1. 2. 3. 4.
4,559 8,303 3,318 370
1. 36 feet 2. 40 feet
1,318
8,449 2,128
5,871 8,973
1. 8 people 2. 19 cm
7,886 5,819
547
7,071
49
78 95 127 895 639
PAGE
2,664 1,809
3,202 2,205 182 4,107 1,309 1,819 5,428 1,853 979 2,547 776 1,289 4,769 3,796
79
1. 9 18 2. 366 874 3. 629 274 4. 698 7,278 5. 1,138 297 6. 9,266 5,049 7. 868 8,088 8. 3,928 2,881
4,611 8,620
48
1. 21 19 2. 8 27 3. 93 779 4. 178 124
5. 6,339 6,579 6. 4,554 7,171 7. 4,586 9,049 8. 511 3,516 PAGE
2,475 3,112 3,661 1,458 9,313 7,726 6,368 5,039 3,062 2,659 4,074 5,569 2,089 9,268
47
1. 5,113 1,231 2. 4,103 2,724 3. 2,376 909 4. 583 5,914 5. 4,353 2,788 6. 699 4,365 7. 3,868 2,777 PAGE
226 319 92 395 304 79 388
46
1. 3,521 8,117 2. 7,337 2,134 3. 4,911 1,311 4. 8,525 5,909 5. 6,908 7,877 6. 5,083 1,179 7. 5,785 4,868 PAGE
133 112 138 79 109 187 289
45
1. 1,432 7,332 2. 4,202 5,291 3. 1,665 2,606 4. 7,192 3,204 5. 9,506 1,496 6. 6,451 8,312 7. 4,646 7,577 PAGE
222 211 154 323 672 676 77
5/6=10/12 2/6=3/9 2/5=4/10 1/2=2/4
1. 2. 3. 4. 5.
PAGE
1. 2. 3. 4.
1/6 4/9 2/4=1/2 10/12=5/6 4/8=1/2
3/5>3/9 6/8>8/12 10/12=5/6 2/10 or 0.2
7/8<11/12 2/3=6/9 3/7>3/8 9/10 or 0.9
65
14 24 6. 27 8 7. 10 28 8. 0 18 9. 7x3=21 1x5=5 10.
PAGE
1. 2. 3. 4.
3/10 8/12=2/3 2/8=1/4 3/10 5/6
64
6/10>3/6 1/6<1/4 8/10>8/11 6/10 or 0.6
PAGE
1. 2. 3. 4. 5.
63
4/7 3/5 6/11 2/3 6/9=2/3
8 0 3 0
4x5=20 9x2=18 8x3=24 3x6=18 6x3=18
5x3=15 6x6=36 2x3=6 7x2=14 9x4=36
66 0 2 7 5
0 0 8 4
4 9 0 0
0 0 5 0
5. 0 6 2 0 0 6. 1 0 7 0 0 7. 9 0 0 6 0
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
PAGE
1. 2. 3. 4. 5. 6. 7. 8.
PAGE
1. 2. 3. 4. 5. 6. 7. 8.
1. 2. 3. 4. 5. 6. 7. 8. 1. 2. 3. 4. 5. 6.
12 42 14 49 16 56 18 63
18 48 21 56 24 64 27 72
24 54 28 63 32 72 36 81
30 60 35 70 40 80 45 90
PAGE
PAGE
0 15 25 0 5 20 0
40 20 2 35 90 45 35
70 40 12 18 0 14 10
20 10 100 15 30 4 20
30 30 10 16 40 5 50
45 21 60 36 35 63 0 30
6 48 9 0 81 30 64 100
42 0 0 90 14 27 15 7
50 18 28 56 20 49 12 4
36 12 54 6 40 3 16 72
2x9=18 4x6=24 9x(2x4) (5x7)x4 8x5+8x9 7x9+3x9 68 69 546 186 108
159 128 106 146 184
305 459 305 168 648
48 146 188 88 148
73 140 581 468 235 472
252 136 238 672 372
130 135 112 87 138
424 644 315 375 392
432 198 492 282 711
74
1. 1,448 1,466 2. 1,569 488 3. 1,839 2,766
1,248 1,896 1,263 3,288 6,399 628 1,682 1,893 284 1,536 1,468 1,684
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
2,577 2,512 4,752 1,865 3,766 7,461
6,339 32,928
42,876 20,160 12,825 31,350 51,804 68,868 54,423 22,218 21,552 19,824
24,878 35,696
63,099 10,486 18,826 24,084 21,939 36,484 16,884 72,888
22,036
43,045
8,700
20,315
9,558
8,238
89,280
11,711
66
112
1,035 496
105
210
528
258
1,466
588
3,055 1,440 5,775
1,299
2,590 862
3,519
3,292
79
1. 595 222 232 730 648 912 2. 2,408 3,215 228 3,185 747 3,150 3. 1,924 10,927 2,076 12,045 6,032 1,884 4. 24,948 1,197 3,941 9,940 35,180 11,263 5. 44,205 10,460 55,244 32,445 33,304 39,912 PAGE
80
1. 7 4 5 9 2. 7 6 6 5 3. 8 9 6 8
141
4. 4 7 9 3 5. 5 8 9 4
1 6 1 6 1 6 1 6
PAGE
3,348 5,928
328
1. 2. 3. 4. 1. 2. 3. 4.
21,966 48,888 18,996 16,882 16,486 6,488 35,707 16,288 12,884 15,996
189
PAGE
PAGE
78
1. 108 86 2. 568 164 3. 1,269 4,866 4. 693 2,036 5. 12,366 38,700 PAGE
2,268 1,827
77
1. 15,741 23,180 2. 61,064 37,664 3. 19,614 31,608 4. 21,872 54,720 5. 35,852 24,336 PAGE
2,540 4,165 2,338 4,416 1,449 3,412 2,385 2,296 4,825 2,264
76
1. 10,828 10,864 2. 16,884 21,693 3. 15,339 12,996 4. 8,844 12,868 5. 18,699 16,840 PAGE
46 96 88 217 189
75
1. 2,185 2,108 2. 1,650 4,095 3. 4,734 6,608 4. 2,912 1,892 5. 3,129 4,370
72
434 144 584 252 430
PAGE
4. 886 4,866 2,199 1,048 1,288 693 5. 1,426 1,569 486 628 3,055 2,463
71
48 567 104 249 216
PAGE
1. 2. 3. 4. 5.
10 20 15 30 20 40 25 50
7x4=28 5x3=15 3x(7x2) (2x6)x9 6x3+6x2 2x6+5x6
PAGE
1. 2. 3. 4. 5.
8 18 12 27 16 36 20 45
70
16 8 40 25 80 0 0 24
PAGE
6 16 9 24 12 32 15 40
69
8 2 20 10 30 12 40
PAGE
4 14 6 21 8 28 10 35
68
6 36 7 42 8 48 9 54
PAGE
1. 2. 3. 4. 5. 6. 7.
67
2 12 3 18 4 24 5 30
1. 2. 3. 4. 5.
9 8 9 7
PAGE
1. 2. 3. 4. 5.
5. 6. 7. 8.
1 6 1 6
2 7 2 7
3 8 3 8
4 9 4 9
5 10 5 10
3 8 3 8
4 9 4 9
5 10 5 10
5. 6. 7. 8.
1 6 1 6
2 7 2 7
3 8 3 8
4 9 4 9
5 10 5 10
6. 7. 8. 9. 10.
10 5 10 10 2
2 5 5 2 5
2,5,10 2 2,5,10 5 2
2 10 2 5 5
10 2 5 3 10
84 6,7x6=42 4,8x4=32 9,9x9=81 9,7x9=63 8,4x8=32 9,5x9=45 6,9x6=54 8,8x8=64
4,4x4=16 9,2x9=18 7,5x7=35 6,6x6=36 8,10x8=80 7,4x7=28 9,3x9=27 8,9x8=72
85 5 5 4 4
2 8 7 2
4 8 6 5
8 8 6 4
5. 6. 7. 8.
7 8 9 6
10 2 5 8
12 19 14 18 11
29 13 21 16 14
16 42 11 19 46
12 13 24 19 11
31 31 59 82 87
83 69 85 82 92
50 86 59 96 96
63 49 83 73 28
109 107 114 214
368 135 294 109
284 144 166 189
154 215 146 463
869 885 959 637
863 145 385 927
539 781 678 842
863 938 667 895
7 3 3 8
9 3 7 7
6 5 9 6
86
87
88
89
246 804 634 883
PAGE
1. 2. 3. 4.
5 10 5 10
83
158 137 127 139
PAGE
1. 2. 3. 4.
2 7 2 7
21 81 71 56 94
PAGE
1. 2. 3. 4.
4 9 4 9
82
18 31 14 12 13
PAGE
1. 2. 3. 4. 5.
3 8 3 8
6,3x6=18 8,6x8=48 5,10x5=50 5,3x5=15 8,2x8=16 9,8x9=72 7,7x7=49 5,6x5=30
PAGE
1. 2. 3. 4.
2 7 2 7
5 2 2,5,10 2 2,5,10
PAGE
1. 2. 3. 4. 5. 6. 7. 8.
81
90
1,429 1,421 4,579 1,487
2,871 1,224 2,516 1,065
1,804 1,258 1,242 3,828
2,846 1,007 1,186 1,749
1,363 1,549 1,526 3,187
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Answer Key PAGE
1. 2. 3. 4. 5. 6.
PAGE
1. 2. 3. 4. 5. 6.
1. 2. 3. 4.
17 12 150 749 142 268
24 123 72 115 1,370 1,193
14 123 466 187 234 2,346
16 33 74 679 827 788
PAGE
PAGE
1. 2. 3. 4.
1. 2. 3. 4. 5. 6. 7. 8.
$4.25 $15.85 $24.90 $21.25
1. 2. 3. 4. 5. 6. 7. 8.
$3.90 $9.36 $0.39 $0.11
102
1. $20.70 $18.92 $47.25 $16.83 $7.92 2. $38.15 $41.92 $75.96 $10.68 $35.28 3. $32.86 $150.64 $52.20 $181.05 $194.80 4. $0.62 $1.69 $2.28 $1.76 $1.87 5. $0.74 $0.38 $0.72 $1.51 $1.47 6. $8.52 $5.78 $13.57 $5.38 $1.66
48 39 21 208 22 16,428
6 128 12 25 1,086 29
7 9 17 1,899 1,408 2,496
438 87 1,185 2,352 85 35,170
376 990 97 1,706 22,096 175
26 1,377 32 18,102 2,718 2,467
90 9 1,266 23 37 451
96 8 218 1,535 74 1,190 17,124
97 $0.15 $0.16 $0.10 $0.30 $0.45 $0.46 $0.25 $0.56 $0.75 $0.85 $0.95
$0.50 $0.75 $1.00 $1.10 $1.16 $1.17
98
$7.25 $4.21 $30.30 $15.08 $26.02 $41.50 1 $5 bill, 3 $1 bills, 1 quarter, 1 dime, 1 nickel, and 3 pennies; 1 $20 bill, 4 $1 bills, 1 quarter, and 1 nickle
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
1. 2. 3. 4.
PAGE
1. 2. 3. 4.
5. 6. 7. 8.
$12.74 $3.40 $5.50 $24.25
105 $11.32 $10.22 $0.66 $19.40 $0.85 $9.73
$24.08 $20.51 $4.62 $19.36 $33.53 $12.20
$15.59 $2.86 $48.56 $1.24 $17.74 $18.83
$1.58 $1.93 $15.63 $66.01 $22.94 $1.94 $2.87 $27.78 $20.91 $15.43 $175.21$18.59
$12.04 $1.16 $0.14 $1.89 $6.35 $24.03
$42.25 $11.21 $0.82 $20.17 $23.16 $7.63
$1.64 $10.27 $0.08 $53.37 $68.70 $18.03
3 5 8 12 3 60
106
107 2 22 7 7 16 9
12 8 8 1 7 5
142
7. 8. 9. 10. 11. 12.
49 8 x ÷ x x
9 12 + -
4 40 ÷ + x
1. 2. 3. 4. 5.
8+n=12 24÷n=3 10-n=5 2xn-2=8 10xn=50 n÷7=7 6+n=5x2 (n+4)÷2=7
111 n=12 n=0 n=8 n=9 n=9
n=10 6. n=5 7. n=4 8. n=10 9. n=1 10.
n=0 n=5 n=3 n=7 n=6
n=9 n=33 n=12 n=7 n=2 n=7 n=22 n=5 n=4 n=8
n=25 6. n=42 7. n=5 8. n=30 9. n=12 10.
n=3 n=3 n=4 n=3 n=77n=2 n=3 n=2 n=7 n=5
112
n=3 n=6 n=4 n=16 n=5
PAGE
1. 2. 3. 4. 5.
110
n=5 n=6 n=6 n=18 n=5
PAGE
$0.92 $18.92 $3.92 $3.92 $11.83 $22.05
PAGE
1. 2. 3. 4. 5. 6.
104
$8.85 $16.88 $31.20 $12.71 $1.94 $1.84
PAGE
1. 2. 3. 4. 5. 6.
PAGE
1. 2. 3. 4. 5.
109
n-3=5 nx6=36 4xn=28 3+n=2+5 12+n=15 n-7=7 nx12=60 11+9-6=n
5. $11.54
$6.25 $57.00 $1.04 $5.47
PAGE
1. 2. 3. 4. 5. 6.
103
$2.15 $8.58 $8.30 $59.00
subtract 6 add 10 divide by 3 multiply by 4 add 1, add 2 subtract 0, 1, 2, 3, 4 divide by 4 add 100
10, 13, 16, 19, 22, 25, 28, 31 0, 7, 14, 21, 28, 35, 42, 49 50, 100, 150, 200, 250, 300, 350 64, 32, 16, 8, 4, 2, 1 30, 29, 27, 24, 20, 15, 9, 2 1, 4, 9, 16, 25, 36, 49, 64 3, 7, 10, 14, 17, 21, 24, 28, 31, 35 9:30, 10:25, 10:30, 11:25, 11:30, 12:25, 12:30, 1:25, 1:30, 2:25, 2:30, 3:25
PAGE
1. 2. 3. 4. 5. 6. 7. 8.
108
add 3 subtract 5 multiply by 2 add 0, 1, 2, 3, 4 subtract 20 multiply by 3 add 3, add 4 divide by 2
PAGE
101
$0.88 $8.88 $0.26 $0.37
PAGE
$0.10 $0.25 $0.35 $0.55 $0.50
PAGE
$14.00 $28.00 $15.50 $1.50
100
$26.25 $26.85 $7.80 $16.95
PAGE
95
1. $0.05 $0.20 2. $0.25 $0.50 3. $0.25 $1.05 4. $0.25 $1.15
1. 2. 3. 4.
99
$21.00 $23.50 $20.00 $22.50
PAGE
94
13 4,417 1,536 84 1,854 572
PAGE
1. 2. 3. 4.
6 7 13 13 84 862
93
63 35 205 42 367 2,709
PAGE
1. 2. 3. 4. 5. 6.
12 5 52 6 75 119
14 books 1,070 tickets 288 crayons 87 miles 39 pages
PAGE
1. 2. 3. 4. 5. 6.
3 3 6 44 471 359
84 dandelions 8 marbles 77 hours 93 miles 8 bags
PAGE
1. 2. 3. 4. 5.
PAGE
2 9 21 84 145 157
92
28 94 148 174 473 3,808
PAGE
1. 2. 3. 4. 5.
91
3 9 8 13 54 103
n=4 n=6 n=36 n=7 n=18
n=63 n=6 n=7 n=45 n=7
113
n-7=18 15+n=25 n+10=30 n-7=13 2n=12
PAGE
114
1. 1, 10, 100, 1,000, 10,000, 100,000 2, 4, 6, 8, 10, 12 2. 4, 8, 12, 16, 20, 24 6, 12, 18, 24, 30, 36 3. 1, 3, 5, 7, 9, 11 9, 18, 27, 38, 45, 54 4. ÷ + ÷ 5. ÷ ÷ ÷ 6. ÷ x 7. n=4 n=0 n=12 8. n=4 n=1 n=1 9. n=7 n=4 n=2 10. n-8=7, n=15 11. 2n+1=15, n=7
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PAGE
115
PAGE
1. 15 minutes after 7 15 minutes before 4 2. 5 minutes after 9 10 minutes before 7 3. 25 minutes before 11 17 minutes after 8 4. 2 days 3 minutes 5. 14 days 72 hours 6. 30 Nov. 6 7. Monday PAGE
116
1. 7:21 2. 10:32
5:40 8:51
11 12 1
3.
3 4
8 7 6
4.
11 12 1 2
10 9
7 6
3 4 7 6
PAGE
7 6
6:20 5:30
7 6
3 4
5
7 6
5
3 4 7 6
5
5
2
10 9
3 4
8 7 6
5
118
119
40 minutes 1 hour and 40 minutes 3 hours and 20 minutes 35 minutes
PAGE
PAGE
6. 7. 8. 9.
years seconds minutes minutes
5. 6. 7. 8.
2 ft 5 yd 400 miles 11 in 20 yd 1 in 1,000 miles 4 ft
121
in yd miles ft miles in ft yd
1. 2. 3. 4. 5.
2 2 1 6 5
PAGE
1. 2. 3. 4.
PAGE
1. 2. 3. 4.
PAGE
yd 2 ft 6. in 3 yd 7. 4 ft 8. ft 4 in 9. yd 1 ft 10.
ft 3 in ft 4 ft yd 1 ft miles ft 1 in
5 4 1 9 6
yd in yd yd yd 2 ft
124 5. 6. 7. 8.
8 ft 22 ft 22 ft 13 yd
1 ft 9 in 4 yd 1 ft 7 in 12 ft 4 in 34 ft 2 in
125
cm m km cm
PAGE
5 3 6 2 6
km cm m m
5. 6. 7. 8.
126
2m 20 cm 1,400 km 80 m
350 km 30 m 70 cm 10 km
1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
PAGE
1. 2. 3. 4. 1. 2. 3. 4.
PAGE
1. 2. 3. 4. 5. 6. 7. 8. 1. 2. 3. 4. 5. 6.
Math Computation Skills and Strategies, Level 3 Saddleback Educational Publishing ©2006
5. 104 cm
134
No 25 ft 5m Yes
PAGE
135 11 12 1
7 6 11 12 1 3 4
8 7 6
5 cm 3 cm 4 mm 20 cm 4 km 2m 900 cm 5 km 300 m 90 cm 53 mm 720 cm 90 cm 2 m 33 cm 5 km 300 m
21 17 13 39
cm m km cm
1 mm 100 m 2 mm
3.
5
3 4
8 7 6
5
7 6
3 4 7 6
5
5
11 12 1 2
8
3 4
8
5
10 9
2
10 9
11 12 1 2
5
11 12 1 3 4
7 6
11 12 1 10 9
7 6
2
8
3 4
8
5
10 9
2
10 9
11 12 1 2
10 9
6 mm 10 cm 200 m 10 cm 20 cm 200 m 4 mm 10 cm
3 4
8
2.
11 12 1 2
10 9
2
10 9
3 4
8 7 6
5
4. 6 hours and 45 minutes 5. 4 hours and 5 minutes PAGE
136
1. Perimeter 2+2+2+2=8 ft Area 2x2=4 sq ft 2. Perimeter 7+3+7+3=20 m Area 7x3=21 sq m 3. Perimeter 3+4+3+4=14 ft Area 3x4=12 sq ft 4. Perimeter 5+5+5+5=20 cm Area 5x5=25 sq cm 5. 14 ft 6. No 7. 90 sq ft of carpeting and 38 ft of border material
129
4+2+4+2=12 m 5+3+5=13 in 6+6+6+6=24 ft 3+3+3+3+3=15 cm 6+8+10=24 mm 1+5+1+5=12 yd
PAGE
1. 2. 3. 4. 5. 6.
133
4. 6 cm 5. 16 cm
128
3 cm 2m 6 km 15 m 9m 5 km 10 cm 32 m
4. 6x9=54 sq cm 5. 2x2=4 sq ft 6. 5x6=30 sq ft
28 m 140 yd 84 sq ft 99 sq in
PAGE
127
2 km 8m 7m 9 cm 6,000 m 300 mm 2m 3,400 m 2m 903 cm
132
1. 3x3=9 sq cm 2. 2x5=10 sq m 3. 4x3=12 sq ft
1. 6:15
1. 4 cm 2. 12 cm 3. 2 cm PAGE
131
1. 4x4=16 sq m 4. 3x3=9 sq cm 2. 8x9=72 sq ft 5. 5x7=35 sq yd 3. 7x2=14 sq mm 6. 10x1=10 sq in
123 ft 5 ft 6 mile yd 1 ft 3
5 ft 3 in 6 yd 1 ft 13 ft 1 mile
PAGE
120
minutes years seconds minutes months
PAGE
4. 6 in 5. 1 in
11 12 1 2
8
3 4
8
11 12 1 10 9
2
10 9
40 minutes 1 hour and 35 minutes 2 hours and 35 minutes 45 minutes 1 hour and 1 minute 2 hours and 5 minutes 7 hours 21 minutes 1 hour and 38 minutes 2 hours and 15 minutes 1 hour and 50 minutes 11 hours and 20 minutes
PAGE
1. 2. 3. 4.
3 4
8
5
2
7 6
1. 2. 3. 4. 5.
5
11 12 1 2
10 9
11 12 1 10 9 8
1. 2. 3. 4.
7 6
11 12 1 3 4
8
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
3 4
8
5
4:35 12:00 2
10 9
PAGE
2
10 9
117 11 12 1
4.
5
PAGE
11 12 1 3 4
7 6
1. 8:40 2. 12:45 3.
7 6
2
8
5
3 4
8
5
10 9
2
10 9
11 12 1 2
8
3 4
8
11 12 1
11 12 1 2
10 9
5
10 9
11:05 6:17
122
1. 2 in 2. 5 in 3. 3 in
130
4+4+4+4+4=20 in 6+6+6+6=24 ft 7+3+7+3=20 cm 9+9+9=27 m answer to come 1+6+1+6=14 in
143
3 Watson, Irvine, CA 92618 Phone (888) SDL-BACK www.sdlback.com
Saddleback Math Covers
10/22/06
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Page 1
MATH COMPUTATION SKILLS & STRATEGIES Every book in the Math Computation Skills and Strategies series contains over 100 reproducible pages.These highinterest activities combine computation practice with strategy instruction. Featuring a Scope and Sequence chart, the books allow educators to supplement their math lessons with the extra math practice all students need. In addition, periodic reviews allow for reinforcement and assessment of skills.
H I G H - I N T E R E S T M AT H C O M P U TAT I O N S K I L L S & S T R AT E G I E S
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• LEVEL 3
The books are grade specific, but they were created with students of all ages in mind. Each book features ready-to-use pages with instructional tips at the beginning of each lesson. Math Computation Skills and Strategies reproducible books are the perfect choice for educators.
HIGH-INTEREST
MATH COMPUTATION SKILLS & STRATEGIES Operations Fractions and Decimals Whole Numbers Perimeter and Area Regrouping
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Solving Word Problems Money Measurement
LEVEL
3
100 plus+ REPRODUCIBLE ACTIVITIES
