4 + 5 - 3, 6, 5, 4, 2, 1 + 3 + 5, 0, 9, 7, 6, 2 + 5 - 5, 5, 8, 7, 2, 2 + 5 - 1, 6, 5, 7, 1, 3 - 3 + 5, 4, 5, 2, 7, 5 - 5 + 2, 2, 7, 1, 5, 3 + 5 + 1, 5, 9, 4, 8, 4 - 3 + 5, 9, 1, 6, 7

Mental Math Challenge

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