78-6= | 81+5= | 65-5= | 87-9= | 72+5-9= |
3+80= | 77-70= | 40+30= | 14-9= | 10+7-8= |
13-5= | 90-80= | 98-8= | 13+20= | 80-20+8= |
20+80= | 12+26= | 55+20= | 21+5= | 13-9+20= |
20+50= | 80-30= | 58-8= | 70+6= | 91-8= |
45+3= | 36+4= | 85+30= | 54+9= | 28-6= |
23+20= | 77+5= | 24-7= | 87-50= | 25+30= |
72-9= | 23-8= | 57-40= | 45-3= | 37+8= |
14-7= | 15+3= | 16-0= | 15-8= |
9+4= | 11-2= | 17-8= | 14+3= |
8+7= | 12-5= | 12-9= | 20+50= |
64=60+( ) | ( )-3=80 | ( )+7=11 | 7+( )=37 |
50+8-3= | 9+3+7= | 18-3-5= | 15-6+6= |
51+20= | 7+52= | 58-5= | 53-50+5= |
69-7= | 6+8= | 17-9= | 75-60+80= |
90-10= | 40+38= | 64-40= | 85-30+2= |
39+40= | 15-8= | 30+60= | 32+50-40= |