The difference between 77 and 30 is: 
The difference between 72 and 62 is: 
The difference between 78 and 30 is: 
The difference between 77 and 36 is: 
The difference between 47 and 30 is: 
The difference between 77 and 60 is: 
The difference between 81 and 34 is: 
The difference between 77 and 30 is: 