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- Find n to make the number sentence true. You may use number lines or other strategies.
- 600 + n + 6 = 706
- 1000 + 1000 + 1 = n
- 4076 = n + 70 + 6
- 400 + 30 + 7 = 7 + n + 400
- 700 + 40 + 2 = 600 + n + 2
- Show or tell how you know your answer to Question 1E is correct.
- Replace each letter with a number to make the number sentence true. You may use number lines or other strategies.
- 100 + 45 + 5 + n = 1000
- 1000 = 810 + 100 + 80 + n
- 1000 = 625 + 300 + n + 5
- 1000 = 456 + 4 + 40 + n
- 9000 = 8982 + 8 + n
- 1000 = 756 + 200 + 50 − n
- Draw a number line to show that your answer to Question 3C is correct.
