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Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.

Worksheets

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Each worksheets has 12 problems finding the result of an addition problem.

Each worksheet has 10 problems where answer is found by adding and then subtracting.

Each worksheet has 10 problems where answer is found by subtracting and then adding.

Each worksheet has 20 problems subtracting within 100.

Each worksheets has 12 problems finding the result of a subtraction problem.

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