The difference between 84 and 71 is: 
The difference between 55 and 10 is: 
The difference between 82 and 71 is: 
The difference between 84 and 72 is: 
The difference between 84 and 71 is: 
The difference between 84 and 31 is: 
The difference between 90 and 77 is: 
The difference between 84 and 71 is: 