The difference between 50 and 22 is: 
The difference between 71 and 44 is: 
The difference between 59 and 22 is: 
The difference between 50 and 20 is: 
The difference between 40 and 22 is: 
The difference between 50 and 42 is: 
The difference between 59 and 21 is: 
The difference between 50 and 22 is: 