The difference between 78 and 45 is: 
The difference between 87 and 16 is: 
The difference between 77 and 45 is: 
The difference between 78 and 40 is: 
The difference between 88 and 45 is: 
The difference between 78 and 45 is: 
The difference between 82 and 49 is: 
The difference between 78 and 45 is: 