The difference between 79 and 61 is: 
The difference between 97 and 42 is: 
The difference between 77 and 61 is: 
The difference between 79 and 62 is: 
The difference between 79 and 61 is: 
The difference between 79 and 31 is: 
The difference between 82 and 64 is: 
The difference between 79 and 61 is: 