The difference between 52 and 18 is: 
The difference between 77 and 34 is: 
The difference between 59 and 18 is: 
The difference between 52 and 10 is: 
The difference between 72 and 18 is: 
The difference between 52 and 48 is: 
The difference between 59 and 15 is: 
The difference between 52 and 18 is: 