Correct: 4 + 0 = 4, 4 + 1 = 5, 4 + 2 = 6, 4 + 3 = 7, 4 + 4 = 8, 4 + 5 = 9, 4 + 6 = 10, 4 + 7 = 11, 4 + 8 = 12, 4 + 9 = 13, 4 + 10 = 14, 4 + 11 = 15, 4 + 12 = 16, Incorrect: 4 + 0 = 6, 4 + 8 = 10, 4 + 3 = 9, 4 + 1 = 7, 4 + 2 = 5,

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