Вправи 1 - 100 » 55-56

55-56

33 : 33 = 1 8 ∙ 8 – 8 : 8 = 64 – 1 = 63 17 : 17 = 1 0 : 5 + 5 : 5 = 0 + 1 = 1 8 : 8 + 8 ∙ 1 = 1 + 8 = 9 9 : 9 + 25 : 5 = 1 + 5 = 6 0 ∙ 3 + 7 ∙ 0 = 0 + 0 = 0 (160 – 140) : 20 = 20 : 20 = 1 56. 9 : х = 9 х = 9 : 9 х = 1 х : 59 = 1 х = 1 ∙ 59 х = 59 х ∙ 190 = 190 х = 190 : 190 х = 1

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