Basic Facts Lesson 2.9: Knowing partners of 10, and making 10 to add.

1. What do children need to know and be able to do before they can use the make 10 to add strategy?

2. Give two examples of good materials for learning partners that make 10.

3. Tell what good materials for learning partners that make 10 have in common.

4. Which strategy name means the same as make 10 to add?

5. How is a Use 10 strategy different from a Make 10 strategy.

6. Describe in words how to use a Make 10 strategy to solve 9+7.

8. Illustrate using a 10-frame how to use a Make 10 strategy to solve 9+7.

9. Illustrate using an open number line how to use a Make 10 strategy to solve 9+7.

10. Trace Cuisenaire rods to show how to use a Make 10 strategy to solve 9+7.

11. For what addition facts is the make 10 strategy efficient?

12. Write a word problem appropriate for introducing the make 10 strategy.

Answers