31+8= 20+39= 36-24= 65-35=
15 | 10 | 7 |
( )?
30+5= | 14-6= | 7+8= | 12-5= |
57-30= | 16-9= | 6+5= | 17-8= |
27+30= | 47-30= | 16+23= | 26-14= |
2×5= | 4×5= | 6×3= | 6×5= |
5×3= | 3×3= | 2×4= | 4×3= |
2×6-12= | 5×3+8= | 4×5-7= | 5×5+5= |
18+5= | 64-7= | 68-60= | 11-8= | 3+40 |
35-20= | 80-60= | 35+7= | 52+8= | 39+20= |
70-5= | 62-8= | 50+15= | 65-20= | 48-9= |