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Автор - 19832315

Найди значения вырожения .а) (а+900)÷2 если а =4, 40 , 400 ,4000,40000​

Ответ

Автор - emiliya375

1. (а+900):2 =(4+900):2=904:2=452

2. (а+900):2 = (40+900):2=940:2=470

3. (а+900):2= (а+900):2=(400+900):2=1300:2=650

4. (а+900):2 = (4000+900):2 =49000:2=24500

5. (а+900):2 = (40000+900):2 =40900:2=20450

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