Richtig: 7 + 8 = 15, 6 + 7 = 13, 6 + 9 = 15, 8 + 6 = 14, 5 + 6 = 11, 5 + 8 = 13, 5 + 7 = 12, 7 + 9 = 15, Falsch: 6 + 7 = 14 , 9 + 3 = 15, 8 + 7 = 16, 8 + 6 = 16, 5 + 8 = 17,

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