The difference between 21 and 11 is: 
The difference between 95 and 27 is: 
The difference between 22 and 11 is: 
The difference between 21 and 10 is: 
The difference between 31 and 11 is: 
The difference between 21 and 11 is: 
The difference between 22 and 19 is: 
The difference between 21 and 11 is: 