The difference between 82 and 71 is: 
The difference between 50 and 42 is: 
The difference between 88 and 71 is: 
The difference between 82 and 71 is: 
The difference between 92 and 71 is: 
The difference between 82 and 71 is: 
The difference between 90 and 79 is: 
The difference between 82 and 71 is: 