The difference between 99 and 14 is: 
The difference between 30 and 28 is: 
The difference between 99 and 14 is: 
The difference between 99 and 15 is: 
The difference between 39 and 14 is: 
The difference between 99 and 64 is: 
The difference between 102 and 17 is: 
The difference between 99 and 14 is: 