Используя равенство 518+409=927, вычислите значение выражений (320+518)+409. - №20817708

Используя равенство 518+409=927, вычислите значение выражений (320+518)+409.
- Предмет:
  Математика
- Автор:
  kiera8k68
- 6 лет назад

Ответы 1

(320+518)+409=1247-это переместительное свойство сложения
- Автор:
  severinoadkins
- 6 лет назад
- 0
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