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= |
13-5= | 60+6= | 15-9= | 39-9= |
6+90= | 16-9= | 18-6= | 15-7= |
33-30= | 20+10= | 6+14= | 8+40= |
34+5= | 20+40= | 16-9= | 26+3= |
8+7= | 7+4= | 28+50= | 30-10= |
13-4= | 32+30= | 14-7= | 17-8= |
15+4= | 12-5= | 4+9= | 8+7-9= |
14-8= | 16-9= | 15-6= | 17-8+5 |
57-7= | 40+5= | 70+8= | 80-50-10= |
8+20= | 57-50= | 35-5= | 14-5+90= |
17-9= | 32-30= | 15+4= | 70-40+4= |
5+43= | 46-6= | 29+20= | 16-8+20= |
70+25= | 26+40= | 89-7= | 42-2-20= |
73-70= | 7+62= | 15-7= | 4+3+60= |