Table of Contents

Chapter 1 • Place Value
 Number Patterns: TwoDigit Numbers
 Place Value of FourDigit Numbers
 Writing FourDigit Numbers in Various Forms
 Place Value of FiveDigit Numbers
 Writing FiveDigit Numbers in Various Forms
 Comparing FiveDigit Numbers
 Ordering FiveDigit Numbers
 Rounding to the Nearest Ten
 Rounding to the Nearest Thousand

Chapter 2 • Addition
 Properties of Addition
 Estimating Sums of TwoDigit Numbers: Rounding
 Adding Ones to TwoDigit Numbers with Regrouping
 Adding TwoDigit Numbers without Regrouping
 Adding TwoDigit Numbers with Regrouping
 Adding by Breaking Apart Tens and Ones
 Column Addition of ThreeDigit Numbers: Regroup Ones
 Column Addition of ThreeDigit Numbers: Regroup Ones and Tens
 Word Problems: Addition and Subtraction with Numbers up to 1 000
 Column Addition of Numbers up to 10 000: Regrouping

Chapter 3 • Subtraction
 Subtracting TwoDigit Numbers without Regrouping
 Column Subtraction of TwoDigit Numbers
 Estimating Differences between TwoDigit Numbers: Rounding
 Column Subtraction of ThreeDigit Numbers: Regrouping Tens
 Column Subtraction of ThreeDigit Numbers: Regrouping Hundreds
 Column Subtraction of ThreeDigit Numbers: Regrouping Tens and Hundreds
 Subtraction of Numbers up to 1 000 000
 Column Subtraction of ThreeDigit Numbers: Subtracting across Zeros
 Word Problems: Addition and Subtraction with Numbers up to 1 000 000
 Chapter 4 • Multiplication (1)
 Chapter 5 • Multiplication (2)
 Chapter 6 • Division (1)