The difference between 71 and 10 is: 
The difference between 67 and 52 is: 
The difference between 77 and 10 is: 
The difference between 71 and 10 is: 
The difference between 31 and 10 is: 
The difference between 71 and 50 is: 
The difference between 80 and 19 is: 
The difference between 71 and 10 is: 