The difference between 65 and 20 is: 
The difference between 90 and 35 is: 
The difference between 64 and 20 is: 
The difference between 65 and 21 is: 
The difference between 95 and 20 is: 
The difference between 65 and 40 is: 
The difference between 72 and 27 is: 
The difference between 65 and 20 is: 