The difference between 79 and 11 is: 
The difference between 30 and 27 is: 
The difference between 72 and 11 is: 
The difference between 79 and 14 is: 
The difference between 99 and 11 is: 
The difference between 79 and 31 is: 
The difference between 86 and 18 is: 
The difference between 79 and 11 is: 