The difference between 72 and 33 is: 
The difference between 94 and 31 is: 
The difference between 75 and 33 is: 
The difference between 72 and 30 is: 
The difference between 52 and 33 is: 
The difference between 72 and 53 is: 
The difference between 79 and 30 is: 
The difference between 72 and 33 is: 