The difference between 22 and 20 is: 
The difference between 62 and 49 is: 
The difference between 23 and 20 is: 
The difference between 22 and 20 is: 
The difference between 52 and 20 is: 
The difference between 22 and 10 is: 
The difference between 30 and 28 is: 
The difference between 22 and 20 is: 