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

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