The difference between 72 and 11 is: 
The difference between 64 and 57 is: 
The difference between 77 and 11 is: 
The difference between 72 and 10 is: 
The difference between 82 and 11 is: 
The difference between 72 and 61 is: 
The difference between 80 and 19 is: 
The difference between 72 and 11 is: 