The difference between 72 and 37 is: 
The difference between 80 and 77 is: 
The difference between 78 and 37 is: 
The difference between 72 and 31 is: 
The difference between 92 and 37 is: 
The difference between 72 and 57 is: 
The difference between 78 and 33 is: 
The difference between 72 and 37 is: 