13+6= | 12+8= | 7+( )=11 | 14+5-8 |
7+8= | 20-7= | ( )+3=20 | 7-5+9= |
15-6= | 8+9= | 16-( )=10 | 19-6-9= |
18-3= | 16-8= | 8=( )-8 | 15-7+5= |
5+9= | 14-7= | ( )-6=13 | 17-3-6= |
15 | 10 | 7 |
( )?
15-7= | 13-5= | 8+4= | 7+6= |
18-9= | 19-8= | 5+9= | 4+10= |
15-5= | 16-10= | 10+5= | 11-6= |
12-7= | 14-6= | 3+10= | 11-4= |
18-9= | 13-5= | 16-7= | 9+6= |
8+7= | 15-9= | 15+4= | 14-7= |