ChapterAddition and
Subtraction Concepts
Chapter Opener.................... 67
2-1 Addition Properties...... 68
2-2 Addition Strategies............ 70
2-3 Subtraction Concepts.... 72
2-4 Expressions and
Variables............ 74
2-5 Addition and Subtraction
Sentences........... 76
2-6 Mental Math............ 78
2-7 Estimate Sums and
Differences................ 80
2-8 Add and Subtract Money........ 82
2-9 Check Addition and
Subtraction........... 84
2-10 Problem-Solving Strategy:
Logical Reasoning............ 86
2-11 Problem-Solving Applications:
Mixed Review................ 88
End of Chapter
Check Your Progress (Lessons 1–11).. 90
Enrichment: The Abacus............. 91
Chapter 2 Test..................... 92
Cumulative Review................. 93vChapterPlace Value
Chapter Opener.................... 35
1-1 Thousands.................. 36
1-2 What Is One Million?........... 38
1-3 Millions..................... 40
1-4 Place Value.................. 42
1-5 Estimation................... 44
1-6 Compare and Order
Whole Numbers....... 46
1-7 Number Sense: Use a
Number Line......... 48
1-8 Make Change................ 50
1-9 Compare and Order
Money.............. 52
1-10 Rounding.................... 54
1-11 Work with Money.............. 56
1-12 Problem-Solving Strategy:
Make a Table or List........... 58
1-13 Problem-Solving Applications:
Mixed Review.............. 60
End of Chapter
Check Your Progress (Lessons 1–13).. 62
Enrichment: Billions................. 63
Chapter 1 Test..................... 64
Cumulative Review................. 65*Develops concept or skill with manipulatives. Lesson promotes algebraic reasoning.
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