The difference between 92 and 21 is: 
The difference between 56 and 55 is: 
The difference between 94 and 21 is: 
The difference between 92 and 20 is: 
The difference between 62 and 21 is: 
The difference between 92 and 51 is: 
The difference between 100 and 29 is: 
The difference between 92 and 21 is: 