Question

Помогите с заданием!
690 : 30 * 7 - 161 =
450 : (315 - 265) : 9 =
(644 - 92 * 7) : 40 =
20 * (672 - 84 * 8) =
21 - 420 : 20 + 784 =
(67 * 5 - 334) * 507 =

Answer 1

Пошаговое объяснение:

690 : 30 * 7 - 161 = 0

1) 690 : 30 = 23

2) 23 * 7 = 161

3) 161 - 161 = 0

 

450 : (315 - 265) : 9 =  1

1) 315 - 265 = 50

2) 450 : 50 = 9

3) 9 : 9 = 1

(644 - 92 * 7) : 40 =  0

1) 92 * 7 = 644

2) 644 - 644 = 0

3) 0 : 40 = 0

20 * (672 - 84 * 8) =  0

1) 84 * 8 = 672

2) 672 - 672 = 0

3) 20 * 0 = 0

21 - 420 : 20 + 784 =  784

1) 420 : 20 = 21

2) 21 - 21 = 0

3) 0 + 784 = 784

(67 * 5 - 334) * 507 = 507

1) 67 * 5 = 335

2) 335 - 334 = 1

3) 1 * 507 = 507