September 2021 0 19 Report
1. Вычислите: а) 3,4 ⋅ 5;   б) 3,08 ⋅ 6,7;    в) 7,8 : 1,2;  г) 34,6 : 0,065  (4 балла) 2. Найдите среднее арифметическое чисел: 3,2;   4,5;   2,9;   3,1;  4,2. (2 балла)

3. Найдите значение выражения  (21 – 18,3) 6,6 – 3 : 0,6.  ( 3 балла)

4. Решите уравнение 8,19x - 3,84x – 1,85x = 19,5. (3 балла)
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