The difference between 27 and 18 is: 
The difference between 82 and 10 is: 
The difference between 29 and 18 is: 
The difference between 27 and 14 is: 
The difference between 87 and 18 is: 
The difference between 27 and 18 is: 
The difference between 29 and 10 is: 
The difference between 27 and 18 is: 