The difference between 60 and 54 is: 
The difference between 82 and 72 is: 
The difference between 68 and 54 is: 
The difference between 60 and 50 is: 
The difference between 90 and 54 is: 
The difference between 60 and 54 is: 
The difference between 67 and 51 is: 
The difference between 60 and 54 is: 