15-6=
18-9-7=
12-3=
7+6-5=
13-7=
14-5+8=
17-8=
11-3+6=
43 56 75 38 16 83
7+9=
15-7=
15-9=
12-7=
18-9=
14-5=
14-6=
13-4-4=
11-6+7=
8+9-7=
16-9+7=
12+5-4=
17-2+4=
15-9 11-2 13-3 16-8 14-7
9 6 7 8 10
19-=7+
60+=70-