Question

a cum fac si eu la mate [(12+18)x9-70]:100
b 314-2x[16+5)-(83-79)]
c [(8-2)x(3+2)]+100:(7+3)

d 205:[(46-3x7)x2:10]

Answer 1

a) [(12+18)x9-70]:100=
(30x9-70):100=
(270-70):100=
200:100=2
b) 314-2x[(16+5)-(83-79)]=
314-2x(21-4)=
314-2x17=
314-34=280
c) [(8-2)x(3+2)]+100:(7+3)=
(6x5)+100:10=
30+10=40
d) 205:[(46-3x7)x2:10]=
205:[(46-21)x2:10]=
205:(25x2:10)=
205:(50:10)=
205:5=41

Answer 2

[(12+18)x9-70]:100=269,3b 314-2x[(16+5)-(83-79)]=268
c [(8-2)x(3+2)]+100:(7+3)=40

d 205:[(46-3x7)x2:10]=1722