Table of Contents

Chapter 1 • Numbers to 10 000
 Counting in TwentyFives
 Thousands
 Writing FourDigit Numbers in Various Forms
 Place Value of FourDigit Numbers
 Making FourDigit Numbers
 FourDigit Numbers on a Number Line
 Comparing ThreeDigit Numbers
 Ordering ThreeDigit Numbers
 Comparing FourDigit Numbers
 Ordering FourDigit Numbers
 More and Less: One, Ten, One Hundred, or One Thousand
 Number Patterns: TwoDigit Numbers
 Rounding to the Nearest Thousand
 Rounding Numbers up to 10,000
 Estimating Sums of TwoDigit Numbers: Rounding
 Estimating Differences between TwoDigit Numbers: Rounding
 Estimating Sums of ThreeDigit Numbers: Rounding
 Estimating Differences between ThreeDigit Numbers: Rounding

Chapter 2 • Addition and Subtraction within 10 000
 Column Addition of Numbers up to 10,000: No Regrouping
 Column Addition of Numbers up to 10,000: Regrouping
 Adding Numbers up to 100 Using Compensation
 Mental Addition of Numbers up to 10,000
 Column subtraction of Numbers up to 10,000: No Regrouping
 Column subtraction of Numbers up to 10,000: Regrouping
 Subtracting Numbers up to 100 Using Compensation
 Mental Subtraction of Numbers up to 1000
 Mental Subtraction of Numbers up to 10,000
 Bar Models: Numbers up to 10,000
 TwoStep Problems with Bar Models: Numbers up to 10,000
 Chapter 3 • Multiplication and Division

Chapter 4 • Further Multiplication and Division
 Multiplying by 1 and 0
 Division Rules for 0 and 1
 Commutative Property of Multiplication
 Associative Property of Multiplication
 Multiplying a OneDigit Number by a Multiple of 10
 Multiplying TwoDigit Numbers by OneDigit Numbers: Area Models
 Multiplying a TwoDigit Number by a OneDigit Number: Column Method without Regrouping
 Multiplying a TwoDigit Number by a OneDigit Number: Column Method with Regrouping
 Multiplying by Multiples of 10 and 100
 Multiplying ThreeDigit Numbers by OneDigit Numbers: Adding Partial Products
 Multiplying a ThreeDigit Number by a OneDigit Number: Area Models
 Multiplying a ThreeDigit Number by a OneDigit Number: Column Method
 Dividing TwoDigit Numbers by OneDigit Numbers: Long Division without Remainders
 Dividing a ThreeDigit Number by a OneDigit Number: Area Models
 Dividing TwoDigit Numbers by OneDigit Numbers: Long Division with Remainders
 Dividing a ThreeDigit Number by a OneDigit Number: Subtracting Partial Quotients
 Dividing a ThreeDigit Number by a OneDigit Number: Long Division without Remainders
 Dividing a ThreeDigit Number by a OneDigit Number: Long Division with Remainders
 Word Problems: Multiplying by OneDigit Numbers
 Word Problems: Dividing by OneDigit Numbers
 Chapter 5 • Graphs
 Chapter 6 • Fractions
 Chapter 7 • Time