11-4= | 15-8= | 13-4= | 12-4+7= |
12-8= | 16-7= | 15-8= | 16-8-6= |
11-8= | 17-9= | 16-7= | 3+8-9= | 13-5= |
13-9= | 18-9= | 12-5+8= | 12-7= | 12-8= |
17-8= | 13-8+6= | 16-9= | 12-3= | 12-9= |
4+9-7= | 11-7= | 16-8= | 14-9= | 7+7-8= |
10-3= | 5+9= | 5+3= | 9+4= |
7+4= | 12+2= | 6+4= | 5+7= |
19-6= | 8+2= | 9+8= | 11+5= |
4+10= | 10+6= | 18-8= | 8+8= |
16-4+6= | 2+3+4= | 8-3-1= | 11-6+3= |
2+3+2= | 7-6+3= | 4+7-2= | 4+9+1= |