Question

Calculează:
a) (404 : 4 + 303 x 4): 13 + 7 x (18 - 18:18);
b) 228 : 6 + (176 x 5:4 - 180: 30 x 12): 37;
c) 250 x 2 : (1 000 : 100) + 550 - (720: 8 x 5) - 150; d) 10 x (175:5 + 150) + 550 - (137 x 4 - 525:25);
e) 2 000 - (500:2+5 x 126) x2 - (26 + 26 x 5). ​

Answer 1

Răspuns:

a)(404:4+303×4):13+7×(18-18:18)=

=(101+1212):13+7×(18-1)

=1313:13+7×17

=11+119

=130

b)228:6+(176×5:4-180:30×12):37=

=38+(880:4-6×12):37

=38+(220-72):37

=38+148:37

=38+4

=42

c)250×2:(1000:100)+550-(720:8×5)-150=

=500:10+550-(90×5)-150

=50+550-450-150

=600-450-150

=150-150

=0

d)10×(175:5+150)+550-(137×4-525:25)=

=10×(33+150)+550-(548-21)

=10×183+550-527

=1830+559-527

=2389-527

=1862

e)2000-(500:2+5×126)×2-(26+26×5)=

=2000-(250+630)×2-(26+130)

=2000-880×2-156

=2000-1760-156

=240-156

=84

Explicație pas cu pas:

Sper că te-am ajutat!