The difference between 97 and 81 is: 
The difference between 57 and 31 is: 
The difference between 96 and 81 is: 
The difference between 97 and 85 is: 
The difference between 97 and 81 is: 
The difference between 97 and 11 is: 
The difference between 102 and 86 is: 
The difference between 97 and 81 is: 