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1st Grade Math Drills Worksheets

These 1st grade math worksheets provide essential practice with foundational number skills. Students will master finding ten more and ten less than two-digit numbers, plus addition and subtraction facts within 20. Each printable worksheet contains 50 targeted problems to build fluency.

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short sentence horizontal addition subtraction numeric

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Addition Drills

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About these worksheets

Addition drill worksheets cover the full range of basic fact fluency. Problem sets include adding within 5, adding and subtracting within 10 and 20, finding ten more and ten less, adding 9s with mental math shortcuts, adding to multiples of ten, and individual fact families from 0s through 10s. Mixed drill sets and missing addend problems are also included. Each worksheet contains 50 to 100 problems for timed practice.