The difference between 71 and 16 is: 
The difference between 54 and 27 is: 
The difference between 77 and 16 is: 
The difference between 71 and 10 is: 
The difference between 61 and 16 is: 
The difference between 71 and 36 is: 
The difference between 78 and 13 is: 
The difference between 71 and 16 is: 