The difference between 27 and 16 is: 
The difference between 68 and 66 is: 
The difference between 29 and 16 is: 
The difference between 27 and 16 is: 
The difference between 57 and 16 is: 
The difference between 27 and 16 is: 
The difference between 30 and 19 is: 
The difference between 27 and 16 is: 