Question

va rog faceti dau coroana si follow​

Answer 1

Răspuns:

.

Explicație pas cu pas:

1. [(1+4):5+9]x78

(4:5+9)x78

(1+9)x78

10x78=780

2.[(10+20)+25]:5

(30+25):5

55:5=5

3.900+300:10-(76-84)

3900+300:10-8

3900+30-8

3930-8=3922

4.[(1+4):5+9]x1000+700:100+11x8

(4:5+9)x1000+700:100+11x8

10x1000+700:100+11x8

10000+700:100+11x8

10000+7+11x8

10000+7+88

10007+88

10095

5.[420:(160-125)+25x4]x100

(420:35+25x4)x100

(12+25x4)x100

(12+100)x100

112x100

11200

6.[20x(8-4)+2x10]:10+17x100

(20x4+2x10):10+17x100

(80+2x10):10+17x100

(80+20):10+17x100

100:10+17x100

10+17x100

10+1700

1710