Table of Contents

Unit 1 • Place Value within 1,000
 Hundreds
 Modeling ThreeDigit Numbers
 Place Value of ThreeDigit Numbers
 Writing ThreeDigit Numbers in Various Forms
 Making ThreeDigit Numbers
 ThreeDigit Numbers on a Number Line
 More and Less: One, Ten, or One Hundred
 Comparing ThreeDigit Numbers
 Comparing ThreeDigit Numbers Using Number Lines
 Ordering ThreeDigit Numbers
 Counting in Fifties
 Unit 2 • Addition and Subtraction (1)

Unit 3 • Addition and Subtraction (2)
 Number Patterns: ThreeDigit Numbers
 Column Addition of ThreeDigit Numbers: No Regrouping
 Column Addition of ThreeDigit Numbers: Regroup Ones
 Column Addition of ThreeDigit Numbers: Regroup Tens
 Column Addition of ThreeDigit Numbers: Regroup Ones and Tens
 Adding Numbers up to 1000 Using a Number Line
 Mental Addition of Numbers up to 1000
 Column Subtraction of ThreeDigit Numbers: No Regrouping
 Column Subtraction of ThreeDigit Numbers: Regrouping Tens
 Column Subtraction of ThreeDigit Numbers: Regrouping Hundreds
 Column Subtraction of ThreeDigit Numbers: Regrouping Tens and Hundreds
 Column Subtraction of ThreeDigit Numbers: Subtracting across Zeros
 Subtracting Numbers up to 1000 on a Number Line
 Adding to Subtract Numbers on a Number Line up to 1000
 Mental Subtraction of Numbers up to 1000
 Estimating Sums of ThreeDigit Numbers: Rounding
 Estimating Sums of ThreeDigit Numbers: Compatible Numbers
 Estimating Differences between ThreeDigit Numbers: Rounding
 Estimating Differences between ThreeDigit Numbers: Compatible Numbers
 Relating Addition to Subtraction: Numbers up to 1000
 Word Problems: Addition and Subtraction with Numbers up to 1000
 Additive Comparison with Numbers up to 1000

Unit 4 • Multiplication and Division (1)
 Multiplying Numbers Using Repeated Addition
 Multiplication with Arrays
 Multiplying by 3
 Dividing by 3
 Multiplying by 4
 Dividing by 4
 Multiplying by 8
 Dividing by 8
 Multiplying Numbers Using a Number Line
 Dividing Numbers Using Repeated Subtraction
 Multiplying Numbers Using Bar Models
 Dividing Numbers Using Bar Models
 Remainders Using Models
 Relating Multiplication and Division