15-5= 9+9= 18-8= 10+3+2=
6+6= 16-4= 10+9= 7+3+4=
13+4= 3+8= 6+12= 15-5+7=
17-2= 15+3= 3+7= 9+7-6=
3+8=
8-0=
15-5=
6+6-2=
9+6=
9+9=
6+7=
18-10+6=
11+5=
13-3=
8+4=
8+6-3=