20-17
2/7+4/21+10/12
[(15+3)-20]-14+47(43-39)
9/2 + 5/2 . (3+2)
7.5 -11
(2 - 4 + 12) + (6 - 4)
(8+5). (3+9)
40:2+41-7+80
15-4+40-(35:5+7)
24-11+(21-3+40)
27 + 3 - 45 : 5 + 16
10+2 12
13 . 12 156
27+3-9+16 37
392
3
15-4+40-14 11+40-14 37
20+41-7+80 61-7+80 54+80 134
24-11+58 13+58 71
55/42
14/2 .5 7. 5 35
(-2)-14+188 -16+188 172