8 + 8 - 1 = ____ 10 + 10 - 2 = ____ 10 + 10 - 3 = ____ 6 + 6 - 1 = ____ 4 + 5 + 5 = ____ 3 + 4 - 2 = ____ 4 + 4 - 2 = ____ 10 + 12 = ____ 7 + 3 - 2 = ____ 15 + 5 - 1 = ____ 9 + 3 = ____ 9 + 9 - 4 = ____

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