15-7= 8+5= 7+6= 18-9=
19-5= 12-9= 16-8= 11-2-1=
8+8= 9+5= 13-5= 12-3+3=
19-4=
67-7=
5+50=
88-8=
18-9=
70+8=
87-80=
49-40=
13-6=
56-50=
60+7=
4+30=
16-8= 96-10= 30+15= 5+6= 8+6+40=
79-9= 12-3= 40+9= 95+3= 64+5-20=
40+30= 11-4= 22+5= 7+62= 46-6+54=
10+34= 58-8= 73-70= 13-7= 32-20-7=
7+18= 29+9= 47+38=
18+17= 9+39= 37+48=
27+28= 19+49= 27+38=
37+38= 29+49= 17+48=
14-8= 15-7= 13-7= 8+6=
2+10= 8+3= 14-9= 11-6=
13-9= 16-6= 11-8= 18-9=
17-8-3= 13-4+9= 14-7+5= 11-5+7=
11-6+5= 17-7-3= 18-9-9= 6+9-8=