Предмет: Математика, автор: 11111111172

Помогите,пожалуйста.

Приложения:

missks11: Надо и 72 и 73?

11111111172: да

11111111172: под а и б

Ответы

Автор ответа: Danyloukr

1

72. 1)75:5х3=45(ст.)- в 1 день
2)75-45=30(ст.) - остаток
3)30:5х2=12(ст.) - в 2 день
4)75-(45+12)=18(ст.) - осталось

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