1 Найдите среднее арифметическое чисел: 0,1; 4,4; 6
2 Вычислите: 3,57 + 2,23 – 4,8.
3 Вычислите: (17,28 : 3,2 + 1,4 * 2,5) : 89 + 1,9.
4 Решите уравнение: 1,5х – 1,15 = 1,1
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