September 2021 2 9 Report
Ришите пожалуста.Обери найбильш рациональний,на твою думку,спосиб для усного обчислення суми 68+45+72.
А.60+40+70+8+2 Б.(68+72)+45
В.70+50+70-2-5+2 Г.70+50+70+2+5-2
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