The difference between 89 and 13 is: 
The difference between 94 and 20 is: 
The difference between 89 and 13 is: 
The difference between 89 and 12 is: 
The difference between 89 and 13 is: 
The difference between 89 and 63 is: 
The difference between 95 and 19 is: 
The difference between 89 and 13 is: 