The difference between 37 and 15 is: 
The difference between 60 and 42 is: 
The difference between 39 and 15 is: 
The difference between 37 and 14 is: 
The difference between 47 and 15 is: 
The difference between 37 and 25 is: 
The difference between 40 and 18 is: 
The difference between 37 and 15 is: 