The difference between 79 and 72 is: 
The difference between 45 and 13 is: 
The difference between 75 and 72 is: 
The difference between 79 and 71 is: 
The difference between 89 and 72 is: 
The difference between 79 and 12 is: 
The difference between 82 and 75 is: 
The difference between 79 and 72 is: 