20-10+7=
79-9+6=
8+50-8=
13-9+30=
60+2-60=
10+4-5=
50+7= 8+6= 10-6= 30+8=
76-6= 13+5= 4+60= 28-20=
11-5= 9+3= 90+10= 98-8=
2+40= 13-8= 67-60= 20-20=
8+6= 75-75= 15-4= 80+7=
50+5= 34-20= 56+4= 30+40-50=
75-3= 57+6= 81-5= 100-70+20=
70+7=
55-20=
28-9-6=
85-40=
66+6=
68-60+8=
26+8=
97-80=
50+14+5=
18-9=
60+30=
34-30+30=