The difference between 25 and 25 is: 
The difference between 84 and 40 is: 
The difference between 28 and 25 is: 
The difference between 25 and 24 is: 
The difference between 65 and 25 is: 
The difference between 25 and 15 is: 
The difference between 22 and 23 is: 
The difference between 25 and 25 is: 