The difference between 91 and 84 is: 
The difference between 94 and 57 is: 
The difference between 97 and 84 is: 
The difference between 91 and 80 is: 
The difference between 91 and 84 is: 
The difference between 91 and 74 is: 
The difference between 99 and 82 is: 
The difference between 91 and 84 is: 