The difference between 25 and 15 is: 
The difference between 89 and 88 is: 
The difference between 28 and 15 is: 
The difference between 25 and 12 is: 
The difference between 25 and 15 is: 
The difference between 25 and 15 is: 
The difference between 24 and 15 is: 
The difference between 25 and 15 is: 