2.OA.2: Fluently Adding and Subtracting

Challenge Worksheet
I can fluently add and subtract within 20.

Problem 1

Complete this fact family: 7 + 9 = _____, 9 + 7 = _____, 16 - 7 = _____, 16 - 9 = _____

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Problem 2

Complete this fact family: 7 + 7 = _____, 7 + 7 = _____, 14 - 7 = _____, 14 - 7 = _____

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Problem 3

Complete this fact family: 7 + 7 = _____, 7 + 7 = _____, 14 - 7 = _____, 14 - 7 = _____

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Problem 4

Find the missing numbers: 8 + _____ = 15, 15 - 8 = _____, _____ + 8 = 15

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Problem 5

Find the missing numbers: 8 + _____ = 15, 15 - 8 = _____, _____ + 8 = 15

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Problem 6

Find the missing numbers: 8 + _____ = 15, 15 - 8 = _____, _____ + 8 = 15

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Problem 7

Create three different addition problems that all equal 16. Then write the related subtraction facts.

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Problem 8

Create three different addition problems that all equal 16. Then write the related subtraction facts.

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Problem 9

Create three different addition problems that all equal 16. Then write the related subtraction facts.

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Problem 10

Create three different addition problems that all equal 16. Then write the related subtraction facts.

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