The difference between 81 and 59 is: 
The difference between 43 and 11 is: 
The difference between 89 and 59 is: 
The difference between 81 and 50 is: 
The difference between 81 and 59 is: 
The difference between 81 and 39 is: 
The difference between 86 and 54 is: 
The difference between 81 and 59 is: 