The difference between 14 and 11 is: 
The difference between 66 and 31 is: 
The difference between 14 and 11 is: 
The difference between 14 and 10 is: 
The difference between 84 and 11 is: 
The difference between 14 and 11 is: 
The difference between 21 and 18 is: 
The difference between 14 and 11 is: 