Предмет: Математика, автор: ira855

Сварили варенье из клюквы.При этом на каждые 2 стакана ягод брали 3 стакана сахарного песка.Сколько стаканов ягод взяли для варенья,если всего израсходовали 15 стаканов сахара?

Ответы

Автор ответа: dianalazka
1
10 стаканов. будем считать:
2 ягод                                              3 сахара
4 ягод                                              6 сахара
6 ягод                                              9 сахара
8 ягод                                              12 сахара
10 ягод                                             15 сахара
ira855: как записать короче? 3 класс
dianalazka: 1) 3+2=5
dianalazka: 2)15-5=10
dianalazka: 1) 3+2=5
dianalazka: 2)15-5=10
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