5 + 5 = , 10, 12 + 12 = , 24, 10 + 10 = , 20, 2 + 2 = , 4, 1 + 1 = , 2, 3 + 3 = , 6, 20 + 20 = , 40, 6 + 6 = , 12, 15 + 15 = , 30, 7 + 7 = , 14, 24 + 24 = , 48.

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