The difference between 49 and 27 is: 
The difference between 32 and 19 is: 
The difference between 49 and 27 is: 
The difference between 49 and 20 is: 
The difference between 79 and 27 is: 
The difference between 49 and 17 is: 
The difference between 51 and 29 is: 
The difference between 49 and 27 is: 