The difference between 92 and 80 is: 
The difference between 79 and 21 is: 
The difference between 99 and 80 is: 
The difference between 92 and 80 is: 
The difference between 92 and 80 is: 
The difference between 92 and 20 is: 
The difference between 100 and 88 is: 
The difference between 92 and 80 is: 