8 - 10 - 2 = , 4 - 8 - 4 = , 1 - 10 - 9 =, 5 - 15 - 10 =, 12 - 15 - 3 =, 6 - 15 - 9 =, 9 - 17 - 8 =, 13 - 20 - 7 =, 15 - 20 - 5 =, 17 - 20 - 3 = ,

Subtraction with 10 Frames

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