9-4= | 7+5= | 8+7= | 2+6= | 9+0= |
10-2= | 4+15= | 3+8= | 9+9= | 6-4= |
4+6= | 6+7= | 1+1-1= | 8-8+7= | 9+1-4= |
8+6-3= | 7+0-2= | 14-4-1= | 4+5-3= | 7+3+6= |
□O□O□=□(本)
□O□=□(本)
7+9= | 17-13= | 2+4= |
8+6= | 9+0= | 16-3= |
9+8-6= | 4+5+6= | 17-4-3= |
□O□O□=□
6+3= | 9-4= | 5+4= | 2-2= |
12-2= | 6+8= | 19-10= | 4+6= |
5+9= | 10-7= | 7+6= | 8+3= |
10+3+5= | 7+9-2= | 17-5-2= | 13-2+9= |