All 50 problems should be done in 90 seconds
| 7+9= | 4+6= | 3+7= | 2+4= | 4+7= | ||||
| 0+8= | 1+7= | 2+3= | 1+5= | 2+2= | ||||
| 6+8= | 4+9= | 2+5= | 0+9= | 5+7= | ||||
| 2+6= | 1+2= | 0+5= | 3+6= | 2+8= | ||||
| 1+6= | 4+5= | 5+9= | 8+8= | 5+5= | ||||
| 2+9= | 7+8= | 5+8= | 0+7= | 4+4= | ||||
| 7+7= | 9+9= | 1+4= | 6+7= | 3+8= | ||||
| 1+9= | 6+6= | 4+8= | 8+9= | 1+3= | ||||
| 0+6= | 1+8= | 3+5= | 1+1= | 3+9= | ||||
| 2+7= | 6+9= | 3+3= | 5+6= | 3+4= |
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