9 - 4 = , 6, 4, 8, 5, 2, 17 - 7 = , 3, 11, 8, 10, 13 - 2 = , 13, 11, 3, 6, 10 - 4 = , 6, 4, 2, 7, 18 - 2 = , 4, 15, 11, 16, 7 - 6 =, 13, 1, 6, 10, 5 + 4 = , 9, 3, 4, 8, 3 + 2 = , 7, 16, 4, 5, 4 + 0 =, 0, 3, 4, 8, 6 + 6 = , 12, 14, 8, 0.

Math - subtraction

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