Question

Me ajudem, por favor. (Cálculos)

Answer 1

A)
4.(10+20+15+30=
40+80+60+120
300

B)
(10.6+12.4+5.8)-40=
60+48+40-40
108

C)
[6.(3.4-2.5)-4]+3.(4-2)-(10:2)=
[18.24-12.30]+12-6-5
432-360+12-6-5
95

D)
67+{50.[70:(27+8)+18:2]+21}=
67+{50.[70:35+9]+21}
67+{50.2+9+21}
67+100+9+21
197

E)
[30.(9-6)]+{30:(9+6)]=
[30.3]+{30:15}
90+2
92

F)
58-[20-(3.4-2):5]=
58-[20-10:5]
58-20-2
36

G)
40+2.[20-6+4.7):2]=
40+2.20-6+28:2
40+40-6+14
88