Review — Difficulty 5/10

2.OA.B.2 · Fluently add and subtract within 20 using mental strategies

Review skills for this standard. Write answers where shown.

Together with a parent

1. 4 + 7 = ___ 2. 11 − 4 = ___ 3. 5 − 0 = ___

Written review

1. 6 + 6 = ___ 2. 12 − 6 = ___ 3. 5 − 2 = ___ 4. 3 + 1 = ___ 5. Fill in: 4 + ___ = 5 6. Without counting from 1, solve: 3 + 2 = ___

_See printable PDF for diagram._

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Skills checklist

• [ ] Solves facts with strategies or recall
• [ ] Explains one strategy used
• [ ] Accuracy improves over the 20 sets

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