Предмет: Математика, автор: 9084856895

Вычисли значен. выражен. (8+9)•9 и (20-7)•8 применения правила умножение суммы на число,использ. буквен. выражение, заверши в тетради составления равенств ,(а+б)•с=а•с-б•с

Ответы

Автор ответа: iskanderovna200408

1)153
2)104
3)153=104
4) округлые числа до 200=200

Автор ответа: 9084856895

равенства нет

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