The difference between 99 and 39 is: 
The difference between 27 and 20 is: 
The difference between 99 and 39 is: 
The difference between 99 and 37 is: 
The difference between 99 and 39 is: 
The difference between 99 and 59 is: 
The difference between 94 and 35 is: 
The difference between 99 and 39 is: 