12-3= | 14-7= | 8+4= | 30+7= | 42-2= |
50+6= | 20-9= | 55-50= | 36-6= | 63-3= |
25-5= | 77-70= | 7+9-8= | 64-60+8= | 17-9-2= |
14-8= | 16-9= | 78-70= | 6+8-9= |
6+7= | 6+70= | 11-5= | 16-8+7= |
17-8-3= | 5+4+7= | 44-4+6= |
12->5 8+<17 <64-60
13-5= | 60+6= | 15-9= | 39-9= |
6+90= | 16-9= | 18-6= | 15-7= |
33-30= | 20+10= | 6+14= | 8+40= |