1_ (-1-3+4).5-9.(-2-6)
2_ (-5-10-32).(4-8-16)
3_ -2+3.5-7.(-3+2-8)-4
4_ (2-10).(6-3)-(-8-2).(-9-7)
5- 15+16.2-3
1_ -1-3+4.5-9.-2-6
-1-3 +20+18-6
(+18+20) - (+1+3+6)
38 - 13
25
2_
3_ -2+3.+5-7.-9-4
-2+15+63-4
( +15+63) - (+2+4)
78 - 6
72
4_
