Table of Contents
1 Rounding Rounding Large Numbers 4
2 Estimating with Rounded Numbers 6
3 Introduction to Ratios Multiplicative Comparisons 8
4 Problem Solving with Multiplicative Comparisons 10
5 Ratios as Decimals 12
6 Comparing Ratios in Decimal Form 14
7 Percentages Introduction to Ratios as Percentages 16
8 Percentages in Context 18
9 Finding a Percentage of a Whole 20
10 Percentage Decrease and Increase, Method 1 22
11 Percentage Decrease and Increase, Method 2 24
12 Finding Original Values Using Percentage Decrease and Increase 26
13 Band Charts and Pie Charts 28
14 Preparing Data for Pie Charts 30
15 Creating Pie Charts 32
Test Rounding and Percentages 34
16 Unit Rates Introduction to Unit Rates 36
17 Population Density: An Example of a Unit Rate 38
18 Comparing Unit Rates 40
19 Problem Solving with Unit Rates 42
20 Introduction to Speed 44
21 Comparing Speeds 46
22 Converting Unit Rates 48
23 Calculating Distance 50
24 Calculating Time 52
Test Unit Rates 54
25 Ratios and Proportions Introducing Ratios in Context 56
26 Ratio Notation and Introducing Common Denominators 58
(Review) Review of Simplifying Fractions and Common Denominators 60
27 Introducing Proportionality 62
28 Introducing Proportions 64
29 Writing Proportions 66
30 Simplifying Ratios Involving Decimals and Fractions 68
31 Problem Solving with Proportions 70
Test Ratios and Proportions 72
32 Ratios and Proportions Introduction to Directly Proportional Relationships 74
33 Directly Proportional Relationships 76
34 Directionality in Directly Proportional Relationships 78
35 Graphing Directly Proportional Relationships 80
36 Comparing Graphs of Directly Proportional Relationships 82
37 Introduction to Inversely Proportional Relationships 84
38 Inversely Proportional Relationships 86
39 Directionality in Inversely Proportional Relationships 88
40 Graphing Inversely Proportional Relationships 90
Test Ratios and Proportions 92
41 Analyzing Data Introduction to the Mean 94
42 Calculations Using the Mean 96
43 Problem Solving with the Mean 98
44 Introduction to Spread 100
45 Spread 102
46 Introduction to Histograms 104
47 Drawing Histograms 106
48 Number of Possible Outcomes Introduction to Permutations 108
49 Permutations 110
50 Different Types of Sample Spaces 112
51 Introduction to Combinations 114
52 Combinations 116
53 Applying Combinations 118
Test Analyzing Data and Number of Possible Outcomes 120
Challenge 122
Answer Key 124
