The difference between 89 and 71 is: 
The difference between 46 and 31 is: 
The difference between 83 and 71 is: 
The difference between 89 and 73 is: 
The difference between 89 and 71 is: 
The difference between 89 and 71 is: 
The difference between 97 and 79 is: 
The difference between 89 and 71 is: 