Section A: Add and Subtract Within 1,000 Without Composition or Decomposition

Practice Problems

• Lesson 1 : Compare, Count on, and Count Back

• Lesson 2 : Add and Subtract With Tens and Hundreds

• Lesson 3 : Count on or Count Back to Subtract

• Lesson 4 : Add and Subtract Three-digit Numbers in Different Ways

• Lesson 5 : Center Day 1

Section B: Add Within 1,000 using Place Value Strategies

Practice Problems

• Lesson 6 : Use a Ten to Add Within 1,000

• Lesson 7 : Compose a Larger Unit

• Lesson 8 : Compose Tens and Hundreds to Add

• Lesson 9 : Add Three-digit Numbers

• Lesson 10 : Add Within 1,000

• Lesson 11 : Center Day 2

Section C: Subtract Within 1,000 using Place Value Strategies

Practice Problems

• Lesson 12 : Decompose to Subtract

• Lesson 13 : Decompose Tens or Hundreds

• Lesson 14 : Think Before You Subtract

• Lesson 15 : Decompose a Ten and a Hundred to Subtract

• Lesson 16 : Subtract Within 1,000

• Lesson 17 : Center Day 3

• Lesson 18 : Paint Splattered Bar Graph