The difference between 77 and 27 is: 
The difference between 62 and 39 is: 
The difference between 79 and 27 is: 
The difference between 77 and 21 is: 
The difference between 67 and 27 is: 
The difference between 77 and 27 is: 
The difference between 71 and 25 is: 
The difference between 77 and 27 is: 