The difference between 85 and 31 is: 
The difference between 56 and 41 is: 
The difference between 86 and 31 is: 
The difference between 85 and 33 is: 
The difference between 55 and 31 is: 
The difference between 85 and 51 is: 
The difference between 91 and 37 is: 
The difference between 85 and 31 is: 