The difference between 97 and 10 is: 
The difference between 91 and 53 is: 
The difference between 99 and 10 is: 
The difference between 97 and 15 is: 
The difference between 87 and 10 is: 
The difference between 97 and 10 is: 
The difference between 100 and 13 is: 
The difference between 97 and 10 is: 