The difference between 25 and 12 is: 
The difference between 87 and 76 is: 
The difference between 24 and 12 is: 
The difference between 25 and 13 is: 
The difference between 45 and 12 is: 
The difference between 25 and 12 is: 
The difference between 31 and 18 is: 
The difference between 25 and 12 is: 