Grade 1CCSS 1.OA.1
Grade 1 Add It Up! Worksheet
Addition within 20. Build Grade 1 fact fluency. Free printable worksheet — 20 questions plus a separate answer key. Each sheet is freshly generated, so your kid can practice as many times as they need.
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Sample questions
Two examples from the Add It Up! worksheet. Print the full sheet for 20 questions plus an answer key.
- Sample 1
4 + 2 = ?
Show answer
6 - Sample 2
2 + 3 = ?
Show answer
5
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1.OA.5Count forward (or backward) from a given number.
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1.OA.1Subtraction within 20. Results always non-negative.
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What's Missing?
1.OA.8Find the unknown number in an equation.
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