The difference between 52 and 37 is: 
The difference between 72 and 42 is: 
The difference between 59 and 37 is: 
The difference between 52 and 31 is: 
The difference between 82 and 37 is: 
The difference between 52 and 37 is: 
The difference between 59 and 34 is: 
The difference between 52 and 37 is: 