The difference between 41 and 33 is: 
The difference between 77 and 29 is: 
The difference between 45 and 33 is: 
The difference between 41 and 30 is: 
The difference between 41 and 33 is: 
The difference between 41 and 13 is: 
The difference between 49 and 31 is: 
The difference between 41 and 33 is: 