20 x 3+1-2+3-4
9+123+7-131
14+123-15
20+32+41+7
200 x 10-300+250-1000+50-275+25-725+15-40
73+23-45+12-4
30+34 x 2+21+2/2
122
0
8
100
59
58
120
