The difference between 49 and 17 is: 
The difference between 86 and 69 is: 
The difference between 49 and 17 is: 
The difference between 49 and 18 is: 
The difference between 49 and 17 is: 
The difference between 49 and 27 is: 
The difference between 51 and 19 is: 
The difference between 49 and 17 is: 