The difference between 79 and 37 is: 
The difference between 72 and 31 is: 
The difference between 79 and 37 is: 
The difference between 79 and 38 is: 
The difference between 59 and 37 is: 
The difference between 79 and 27 is: 
The difference between 81 and 39 is: 
The difference between 79 and 37 is: 