Correct, 5 + 5, 1 + 9, 2 + 8, 3 + 7, 4 + 6, 9 + 1, 8 + 2, 7 + 3, 6 + 4, Incorrect, 5 + 2, 2 + 3, 3 + 4, 9 + 2, 6 + 5, 2 + 2, 1 + 8, 3 + 9, 6 + 3, 8 + 6

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