Practice and Homework Book - MISS DAVIES' CLASSROOM
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Practice and Homework Book
Author Team
Ray Appel
Robert Berglind
Susan Ludwig
David Sufrin
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Publisher
Claire Burnett
Elementary Math Team Leader
Diane Wyman
Publishing Team
Lesley Haynes
Enid Haley
Ioana Gagea
Lynne Gulliver
Stephanie Cox
Judy Wilson
Product Manager
Kathleen Crosbie
Design
Word & Image Design Studio Inc.
Typesetting
Computer Composition of Canada Inc.
Copyright ? 2008 Pearson Education Canada, a division of Pearson Canada Inc.
All Rights Reserved. This publication is protected by
copyright, and permission should be obtained from
the publisher prior to any prohibited reproduction,
storage in a retrieval system, or transmission in any
form or by any means, electronic, mechanical,
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information regarding permission, write to the
Permissions Department.
ISBN-13: 978-0-321-43176-9
ISBN-10:
0-321-43176-6
Printed and bound in Canada.
3 4 5 -- WC -- 11 10 09 08 07
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Contents
UNIT
1
UNIT
2
Patterns and Relations
Just for Fun. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Activating Prior Knowledge
Order of Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Graphing on a Coordinate Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Patterns in Division . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2
More Patterns in Division. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3
Algebraic Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4
Relationships in Patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.5
Patterns and Relationships in Tables . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.6
Graphing Relations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.7
Reading and Writing Equations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.8
Solving Equations Using Algebra Tiles . . . . . . . . . . . . . . . . . . . . . . . 22
In Your Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Unit Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Integers
Just for Fun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Activating Prior Knowledge
What Is an Integer?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Comparing and Ordering Integers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.1
Representing Integers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.2
Adding Integers with Tiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2.3
Adding Integers on a Number Line . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2.4
Subtracting Integers with Tiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
2.5
Subtracting Integers on a Number Line . . . . . . . . . . . . . . . . . . . . . . . 41
In Your Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Unit Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
iii
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UNIT
3
UNIT
4
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Fractions, Decimals, and Percents
Just for Fun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Activating Prior Knowledge
Mental Math . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Percent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
3.1
Fractions to Decimals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.2
Comparing and Ordering Fractions and Decimals . . . . . . . . . . . . . . 52
3.3
Adding and Subtracting Decimals . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.4
Multiplying Decimals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
3.5
Dividing Decimals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
3.6
Order of Operations with Decimals . . . . . . . . . . . . . . . . . . . . . . . . . . 64
3.7
Relating Fractions, Decimals, and Percents . . . . . . . . . . . . . . . . . . . 66
3.8
Solving Percent Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
In Your Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Unit Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Circles and Area
Just for Fun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Activating Prior Knowledge
Perimeter and Area of a Rectangle . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Using a Protractor to Measure Angles . . . . . . . . . . . . . . . . . . . . . . . 79
4.1
Investigating Circles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
4.2
Circumference of a Circle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
4.3
Area of a Parallelogram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
4.4
Area of a Triangle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
4.5
Area of a Circle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
4.6
Interpreting Circle Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
4.7
Drawing Circle Graphs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
In Your Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Unit Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
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UNIT
5
UNIT
6
UNIT
7
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Operations with Fractions
Just for Fun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Activating Prior Knowledge
Equivalent Fractions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Relating Mixed Numbers and Improper Fractions . . . . . . . . . . . . . 105
5.1
Using Models to Add Fractions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
5.2
Using Other Models to Add Fractions . . . . . . . . . . . . . . . . . . . . . . . 109
5.3
Using Symbols to Add Fractions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
5.4
Using Models to Subtract Fractions . . . . . . . . . . . . . . . . . . . . . . . . . 115
5.5
Using Symbols to Subtract Fractions . . . . . . . . . . . . . . . . . . . . . . . . 118
5.6
Adding with Mixed Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
5.7
Subtracting with Mixed Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . 123
In Your Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Unit Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Equations
Just for Fun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Activating Prior Knowledge
Writing Expressions and Equations . . . . . . . . . . . . . . . . . . . . . . . . . 130
Evaluating Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
6.1
Solving Equations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
6.2
Using a Model to Solve Equations . . . . . . . . . . . . . . . . . . . . . . . . . . 135
6.3
Solving Equations Involving Integers . . . . . . . . . . . . . . . . . . . . . . . 138
6.4
Solving Equations Using Algebra. . . . . . . . . . . . . . . . . . . . . . . . . . . 141
6.5
Using Different Methods to Solve Equations . . . . . . . . . . . . . . . . . 145
In Your Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Unit Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Data Analysis
Just for Fun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Activating Prior Knowledge
Experimental Probability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Theoretical Probability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
7.1
Mean and Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
7.2
Median and Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
7.3
The Effects of Outliers on Average. . . . . . . . . . . . . . . . . . . . . . . . . . 158
7.4
Applications of Averages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
7.5
Different Ways to Express Probability. . . . . . . . . . . . . . . . . . . . . . . 164
7.6
Tree Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
In Your Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Unit Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
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