The difference between 99 and 27 is: 
The difference between 77 and 74 is: 
The difference between 99 and 27 is: 
The difference between 99 and 20 is: 
The difference between 89 and 27 is: 
The difference between 99 and 67 is: 
The difference between 101 and 29 is: 
The difference between 99 and 27 is: 