Correto: 2 + 2 = 4, 3 + 5 = 8, 5-2 = 3, 10-5 = 5, 1 + 1 = 2, Incorreto: 5+5=11, 5-2 = 1, 10-5 = 0, 1 + 1 = 11, 2 + 2 = 6,

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