The difference between 27 and 15 is: 
The difference between 96 and 26 is: 
The difference between 27 and 15 is: 
The difference between 27 and 15 is: 
The difference between 37 and 15 is: 
The difference between 27 and 15 is: 
The difference between 30 and 18 is: 
The difference between 27 and 15 is: 