| num1,operation,num2,Output,flag | |
| 1,add,1,2,other | |
| 10,multiply,124,1240,other | |
| 2,add,2,4,off by one | |
| ,add,,,other | |
| ,add,,,off by one | |
| ,add,,,wrong sign | |
| ,add,,,wrong sign | |
| 1,multiply,2,2,off by one | |
| 1,multiply,2,2,off by one | |
| ,add,,,wrong sign | |
| 6,divide,8,0.75,off by one | |