Предмет: Математика, автор: nadi22091979

сравни выражения,не выполняя вычислений.какое свойство сложения ты используешь?1)(28+8)+10 .... 28+(8+10) 2)(36+7) +30 ... 36+(7+30). запиши каждое выражение в виде суммы двух слагаемых и найди их значения.

Ответы

Автор ответа: Lena5631

0

1)(28+8)+10=46
28+(8+10)=46
2)(36+7)+30=73
36+(7+30)=73

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