The difference between 33 and 20 is: 
The difference between 73 and 50 is: 
The difference between 36 and 20 is: 
The difference between 33 and 20 is: 
The difference between 43 and 20 is: 
The difference between 33 and 10 is: 
The difference between 41 and 28 is: 
The difference between 33 and 20 is: 