The difference between 49 and 10 is: 
The difference between 86 and 47 is: 
The difference between 48 and 10 is: 
The difference between 49 and 17 is: 
The difference between 39 and 10 is: 
The difference between 49 and 20 is: 
The difference between 55 and 16 is: 
The difference between 49 and 10 is: 