The difference between 57 and 11 is: 
The difference between 37 and 21 is: 
The difference between 52 and 11 is: 
The difference between 57 and 11 is: 
The difference between 27 and 11 is: 
The difference between 57 and 31 is: 
The difference between 65 and 19 is: 
The difference between 57 and 11 is: 