The difference between 54 and 33 is: 
The difference between 84 and 13 is: 
The difference between 57 and 33 is: 
The difference between 54 and 30 is: 
The difference between 64 and 33 is: 
The difference between 54 and 13 is: 
The difference between 60 and 39 is: 
The difference between 54 and 33 is: 