12 - 4 =, 11 - 4 =, 3 + 9 =, 7 - 1 =, 5 + 7 =, 6 + 8 =, 11 - 1 =, 7 + 2 =, 7 + 7 =, 3 + 6 =, 4 - 3 =, 20 - 10 =, 0 + 13 =, 6 - 0 =.

Addition & Subtraction Facts to 20

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