2.NBT.9: Explaining Addition and Subtraction

Grade Level Worksheet
I can explain why addition and subtraction strategies work.

Problem 1

Solve 54 + 32. Explain why your addition strategy works.

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Problem 2

Solve 44 + 25. Explain why your addition strategy works.

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Problem 3

Solve 41 + 40. Explain why your addition strategy works.

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Problem 4

Solve 47 + 25. Explain why your addition strategy works.

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Problem 5

Solve 43 + 30. Explain why your addition strategy works.

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Problem 6

Solve 74 - 30. Explain why your subtraction strategy works.

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Problem 7

Solve 68 - 34. Explain why your subtraction strategy works.

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Problem 8

Solve 82 - 34. Explain why your subtraction strategy works.

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Problem 9

Solve 95 - 32. Explain why your subtraction strategy works.

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Problem 10

Solve 94 - 25. Explain why your subtraction strategy works.

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