1) 96 : (78: 2 - 37) =
49 + 4 x (31 - 20)
78 - 5 x (1 + 2) =
70: (15 - 13) - 18 =
33 + (36 - 34) 20 =

2)4×(36-26)-78:6=
2×[16+(45-40)×2]=
[23×4-(9+15)]:2=
52+(50-42)×(1+2)=

Ajutooor​