The difference between 41 and 23 is: 
The difference between 39 and 21 is: 
The difference between 49 and 23 is: 
The difference between 41 and 20 is: 
The difference between 41 and 23 is: 
The difference between 41 and 33 is: 
The difference between 48 and 20 is: 
The difference between 41 and 23 is: 