Реши образцы 450/(14-9)+(270-180)= 500-(810/90/3+27)= 4*(62+38)-(456-256)*2= 51/17+(768-4*17)= 580-(350/70+17*5)= (64+36/4)-(72/6+36)/12=

Решим данные образцы:

1) 450 : (14 - 9) + (270 - 180) = 450 : 5 + 90 = 90 + 90 = 180;

14 - 9 = 5;

270 - 180 = 90;

450 : 5 = 90.

2) 500 - (810 : 90 : 3 + 27) = 500 - (9 : 3 + 27) = 500 - (3 + 27) = 500 - 30 = 470;

3) 4 * (62 + 38) - (456 - 256) * 2 = 4 * 100 - 200 * 2 = 400 - 400 = 0;

4) 51 : 17 + (768 - 4 * 17) = 3 + (768 - 68) = 3 + 700 = 703;

5) 580 - (350 : 70 + 17 * 5) = 580 - (5 + 85) = 580 - 90 = 490;

6) (64 + 36 : 4) - (72 : 6 + 36) : 12 = (64 + 9) - (12 + 36) : 12 = 73 - 48 : 12 = 73 - 4 = 69.