The difference between 75 and 17 is: 
The difference between 87 and 55 is: 
The difference between 79 and 17 is: 
The difference between 75 and 13 is: 
The difference between 85 and 17 is: 
The difference between 75 and 17 is: 
The difference between 79 and 11 is: 
The difference between 75 and 17 is: 