Предмет: Математика, автор: yanamelnik86

в магазине на полке стояло 25 кружек. Стеклянных и пластмассовых было 14 штук, фарфоровых и стеклянных 16 штук. сколько кружек каждого вида стояло на полке?

Ответы

Автор ответа: PoLiA20045
16
          30   10 5
1)14-(14+16):3):2=9(кр)-пластмассовые;
           30   10 5
2)16-(14+16):3):2=11(кр)-фарфоровые;
        30  10  
3)(14+16):3):2=5(кр)
Ответ:9 пластмассовых кружек, 11 фарфоровых и 5 стеклянных.
yanamelnik86: это сложно для второго класса можно немного проще пожалуйста
PoLiA20045: 14
PoLiA20045: 14+16=30
PoLiA20045: 30:3=10
PoLiA20045: 10:2=5-стеклянная кружка
PoLiA20045: 14-5=9-пластмассовая кружка
PoLiA20045: 16-5=11-фарфоровая кружка
PoLiA20045: понятно??!!
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