The difference between 72 and 39 is: 
The difference between 97 and 34 is: 
The difference between 79 and 39 is: 
The difference between 72 and 30 is: 
The difference between 82 and 39 is: 
The difference between 72 and 29 is: 
The difference between 77 and 34 is: 
The difference between 72 and 39 is: 