The difference between 83 and 31 is: 
The difference between 81 and 11 is: 
The difference between 85 and 31 is: 
The difference between 83 and 31 is: 
The difference between 53 and 31 is: 
The difference between 83 and 31 is: 
The difference between 90 and 38 is: 
The difference between 83 and 31 is: 