13+4= | 6+8= | 15-6= | 14-8= | 18-4-4= |
10+3= | 9+9= | 13-9= | 5+6= | 14-7+5= |
7+412 15-95 5+711 12-58
11-66 13-48 9+413 13-55
18-99 17-99 3+711 11-82
18-9+9= | 4+5+6= | 16-8-8= |
13-4+8= | 15-7-2= | 4+3+7= |
11+5-9= | 18-9-4= | 2+9+3= |
| 原有 | 吃掉 | 剩下 |
15根 | 8根 | 根 | |
12块 | 块 | 3块 | |
个 | 6个 | 5个 |
8+7= | 14-10= | 3+4= | 9-6= | 2+9= |
6+6= | 8+9= | 18-5= | 10-6+3= | 7+7-5= |
6+5+2= | 13-3-2= | 5+0+9= | 10-2+7= |