Practice Problems — Set 12

1.OA.C.6 · Add and subtract within 20, demonstrating fluency for addition and su…

Print and write your answers. Use diagrams to show thinking.

Warm-up

1. 4 + 5 = ___ 2. 9 − 4 = ___ 3. 5 − 1 = ___

_See printable PDF for diagram._

Written practice

1. 3 + 4 = ___ 2. 7 − 3 = ___ 3. 5 − 0 = ___ 4. 2 + 1 = ___ 5. Fill in: 4 + ___ = 5 6. Without counting from 1, solve: 3 + 1 = ___ 7. 6 + 4 = ___ 8. 10 − 6 = ___

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More written practice

1. 5 − 3 = ___ 2. 2 + 2 = ___ 3. Fill in: 5 + ___ = 5 4. Without counting from 1, solve: 4 + 1 = ___ 5. 5 + 4 = ___ 6. 9 − 5 = ___

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Patterns and rules

1. 4 + 6 = ___ 2. 10 − 4 = ___ 3. 5 − 1 = ___

_See printable PDF for diagram._

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Parent tip: Short daily practice — 5 minutes