12-9=
14-8=
12-4=
13-6=
7+8-6=
16-7=
11+5=
9+5=
12-7=
8+3-4=
16+3=
12-6=
18-8=
7+7=
13-9+3=
13-7=
5+8=
14+5=
15-9=
12+6-9=
11-9=
15-7=
14-6=
15-8=
8+9=
13-5=
20-10=
8+11=
12-5=
11-6=
13-9=
6+6=
11-6+9=
14-7+3=
17-8+2=
12+4-8=
8+7-6=
11+6-8=
15-6+3=
13+2-9=
12-7= 14-6= 8+5= 11-4= 18-9=
4+9= 16-7= 14-7= 13-6= 15-8=
11-5= 9+5= 11-2= 16-9= 13-4=