The difference between 51 and 34 is: 
The difference between 60 and 31 is: 
The difference between 56 and 34 is: 
The difference between 51 and 30 is: 
The difference between 51 and 34 is: 
The difference between 51 and 14 is: 
The difference between 57 and 30 is: 
The difference between 51 and 34 is: 