Question

Найди значения выражений:
(321 : 3 + 189 : 9) ∙ 8 = 472 : 8 + 56 ∙ 4 =

Answer 1

(321 : 3 + 189 : 9) ∙ 8 = (107 + 21) ∙ 8 = 128 ∙ 8 = 1024

472 : 8 + 56 ∙ 4 = 59 + 224 = 283

Answer 2

1. (321:3 + 189:9)*8 = 1024

1) 321:3 = 107

2) 189:9 = 21

3) 107+21 = 128

4) 128*8 = 1024

2. 472:8 + 56*4 = 283

1) 472:8 = 59

2) 56*4 = 224

3) 59 + 224 = 283

Посчитано в уме!