Предмет: Математика, автор: evgeniylukyanov1

Раскройте скобки и вычислите: а) - (- 75 - 219) – 219; б) 357 + (4 – 357);
в) - (650 + 9) – (350 – 9)

Ответы

Автор ответа: mikexq2
0

Ответ:

а)75+219-219=75

б)357+4-357=4

в)650-9+350+9=1000

Пошаговое объяснение:

если - стоит перед скобками, то в скобках знаки меняются, а сам - меняется на +

при + перед скобкой ничего не меняется

Автор ответа: mariatrue1986
0

Ответ:

а) -(-294)-219=294-219

А еще посоветую приложение фотомофс

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