Правильно: 3,4 + (-1,6) = 1,8, -3,4 + (-1,6) = - 5, 6 - 9,1 = - 3,1, -1,4 - 1,8 = -3,2, 0 - 6,8 = - 6,8, 5 - 6 = - 1, 13 - 9 = 4 , 8 + (-1) = 7, - 4 + 7 = 3, -6 + (-12) = -18, 8 + (-5) = 3, 8 + (-11) = - 3, Неправильно: 3,4 + (-1,6) = -1,8, -3,4 + (-1,6) = 5, 6 - 9,1 = 3,9, -14 - 1,8 = -16,8, -25 - 0 = 25, -6 + (-12) = 18, -6 + (-12) = -6, - 4 + 7 = - 3, - 4 + 7 = - 11, - 4 + 0 = 4, 8 + (-1) = - 7, - 45 + 4,5 = 0,
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6 клас. Математика. Додавання та віднімання раціональних чисел
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Oksanadrapak
6 клас
Математика
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