3+7= | 10-2= | 1+9= | 9-4-3= |
5+5= | 6+4= | 8+2= | 6+4-8= |
10-8= | 10-6= | 10-7= | 5-5+7= |
5+7= | 10-8= | 4+8= | 8-2-5= |
9+6= | 7+8= | 9-2= | 9+7-6= |
4+4= | 8-5= | 9+7= | 8+3-10= |
5+4= | 2+6= | 8-5= | 9-7= |
10-9= | 6-2= | 9+0= | 7-6= |
7+3= | 4-4= | 8+2= | 3+3= |
6-3= | 8-2= | 1+3= | 1+8= |
4+3+2= | 7-3+2= | 5+3-2= | 10-0-3= |
2+5-4= | 9-5-4= | 8-1+2= | 4+5+1= |
我会画图解决:
10-4= | 8+4= | 6+6= | 7+ 5= |
10-6= | 18+1= | 17-10= | 9+2= |
19-9= | 3+7= | 18-3= | 5+12= |
7+5+1= | 9-0-4= | 5+3-2= | 8-4+5= |
10-4-4= | 6+2-4= | 8-2-4= | 7-6+5= |
10-3-7= | 6+4-5= | 3+2+4= | 4+5-2= |