Question

Dau coroana!
Calculeaza:
a) 40 + 5 x [45 : 9 + 5 x (30 + 8 x 10)] =

b) (120 : 4 - 2 x 4) * [150 + (8 x 9–156 : 6)]: 2:7 =

c) (132 x 5 + 845 :5-29) : 100 + (318 - 106 x 3) =​

Answer 1

a) 40+5x [45:9+5x(30+8x10)]
40+5x[45:9+5x(30+80)]
40+5x(45:9+5x110)
40+5x(9+5x110)
40+5x(9+550)
40+5x559
40+2795
2835

b) (120:4-2x4)x[150+(8x9-156:6)]:2:7
(30-2x4)x[150+(8x9-156:6)]:2:7
(30-8)x[150+(8x9-156:6)]:2:7
22x[150+(72-156:6)]:2:7
22x[150+(72-26)]:2:7
22x(150+46):2:7
22x196:2:7
4312:2:7
2156:7
308


c) (132x5+845:5-29):100+(318-106x3)
(660+845:5-29):100+(318-106x3)
(660+169:5-29):100+(318-106x3)
(660+33,8-29):100+(318-106x3)
(998-29):100+(318-106x3)
969:100+(318-318)
9,69+(318-318)
9,69+0
9,69