X. Subtraction
Solve the following problems. Choose your method. Use the Subtraction Strategies Menu in the Reference section.
- Explain a way to do Question D in your head.
Lesson 8
Class Party
Est. Class Sessions: 2Daily Practice and Problems
Teacher Notes
X
TIMS Task
Remind students to use the Subtraction Strategies Menu in the Reference section of the Student Guide.
Student strategies will vary. Have base-ten pieces and other math tools readily available.
- Possible strategy: Using base-ten pieces
- Possible strategy: Paper-and-pencil
- Possible strategy: Counting up: I started on 4997 and counted up, 4998, 4999, 5000, 5001, 5002, 5003, 5004, 5005, 5006, 5007. I had to count up 10.
- I count up from 4997.
4997 + 3 = 5000
5000 + 7 = 5007
3 + 7 = 10