The difference between 82 and 30 is: 
The difference between 90 and 52 is: 
The difference between 86 and 30 is: 
The difference between 82 and 31 is: 
The difference between 72 and 30 is: 
The difference between 82 and 10 is: 
The difference between 91 and 39 is: 
The difference between 82 and 30 is: 