2.OA.2: Fluently Adding and Subtracting

Practice Worksheet
I can fluently add and subtract within 20.

Problem 1

6 + 3 = _____

Hint: Use counting on or doubles facts to help you.
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Problem 2

8 + 2 = _____

Hint: Use counting on or doubles facts to help you.
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Problem 3

6 + 3 = _____

Hint: Use counting on or doubles facts to help you.
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Problem 4

3 + 3 = _____

Hint: Use counting on or doubles facts to help you.
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Problem 5

3 + 4 = _____

Hint: Use counting on or doubles facts to help you.
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Problem 6

10 - 4 = _____

Hint: Think about the addition fact that goes with this subtraction.
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Problem 7

10 - 6 = _____

Hint: Think about the addition fact that goes with this subtraction.
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Problem 8

9 - 5 = _____

Hint: Think about the addition fact that goes with this subtraction.
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Problem 9

6 - 2 = _____

Hint: Think about the addition fact that goes with this subtraction.
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Problem 10

9 - 2 = _____

Hint: Think about the addition fact that goes with this subtraction.