Correct: 4 + 4 = 8, 7 + 7 = 14, 5 + 8 = 13, 12 + 8 = 20, 16 + 3 = 19, 9 + 9 = 18, 6 + 7 = 13, 8 + 6 = 14, 6 + 9 = 15, Incorrect: 7 + 5 = 11, 8 + 8 = 18, 7 + 8 = 16, 3 + 9 = 13, 9 + 9 = 16, 14 + 5 = 20,

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