The difference between 37 and 13 is: 
The difference between 88 and 11 is: 
The difference between 34 and 13 is: 
The difference between 37 and 10 is: 
The difference between 97 and 13 is: 
The difference between 37 and 23 is: 
The difference between 42 and 18 is: 
The difference between 37 and 13 is: 