Correct: 10 + 0, 3 + 7, 5 + 5, 6 + 4 , 1 + 9 , 2 + 8 , 4 + 6, Incorrect: 1 +10, 3 + 8 , 5 + 6 , 7 + 4 , 2 + 9 , 8 + 1 , 5 + 2,

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