The difference between 77 and 74 is: 
The difference between 51 and 37 is: 
The difference between 78 and 74 is: 
The difference between 77 and 71 is: 
The difference between 87 and 74 is: 
The difference between 77 and 54 is: 
The difference between 81 and 78 is: 
The difference between 77 and 74 is: 