The difference between 51 and 33 is: 
The difference between 74 and 44 is: 
The difference between 57 and 33 is: 
The difference between 51 and 30 is: 
The difference between 41 and 33 is: 
The difference between 51 and 23 is: 
The difference between 59 and 31 is: 
The difference between 51 and 33 is: 