The difference between 23 and 16 is: 
The difference between 97 and 88 is: 
The difference between 27 and 16 is: 
The difference between 23 and 12 is: 
The difference between 33 and 16 is: 
The difference between 23 and 16 is: 
The difference between 29 and 12 is: 
The difference between 23 and 16 is: 