Table of Contents

Chapter 1 Place Value
 1 Algebra: Number Patterns
 2 Comparing Problem Solutions: Using the FourStep Plan
 3 Place Value through 1000
 4 Place Value through 10000
 5 Comparing Numbers
 6 Ordering Numbers
 7 Rounding to the Nearest 10 and 100
 8 Rounding to the Nearest 1000

Chapter 2 Addition
 1 Algebra: Addition Properties
 2 Estimating Sums
 3 Problem Solving Skills: The Answer, Exact, or Estimate
 4 Adding 2Digit Numbers
 5 Problem Solving Skills: Using the FourStep Plan
 6 Adding 3Digit Numbers

Chapter 3 Subtraction
 1 Subtracting 2Digit Numbers
 2 Estimating Differences
 3 Problem Solving Skills: Reasonableness of Answers
 4 Subtracting 3Digit Numbers with Regrouping
 5 Subtracting across Zero
 6 Selecting the Suitable Operation

Chapter 4 Multiplication (1)
 1 Arrays and Multiplication
 2 Multiplication by 2
 3 Multiplication by 4
 4 Problem Solving Skills: Identifying Extra or Missing Given Information
 5 Multiplication by 5
 6 Multiplication by 10
 7 ProblemSolving Investigation
 8 Multiplication by 0 and 1

Chapter 5 Multiplication (2)
 1 Multiplication by 3
 2 Multiplication by 6
 3 ProblemSolving Strategy: Searching for a Pattern
 4 Multiplication by 7
 5 Multiplication by 8
 6 Multiplication by 9
 7 Algebra: Associative Property