Chapter 4 Subtraction Strategies

Lesson 1-Count Back

• Objective: Use count back 1, 2, or 3 as a strategy to subtract.
• Vocabulary: 
• Count back

Lesson 2-  Hands on- Think Addition to Subtract

• Recall addition facts to subtract numbers within 20.

Lesson 3-Use Think Addition to Subtract

• Use addition as a strategy to subtract numbers with in 20.

Lesson 4-Hands on- Use 10 to subtract

• Use make a ten as a strategy to subtract. 

Lesson 5- Break apart to subtract

• Subtract by breaking apart to make a ten.

Lesson 6- Problem Solving- Use Subtraction Strategies

• Solve subtraction problem situations using the strategy act it out.

Chapter 4 Review