The difference between 80 and 52 is: 
The difference between 90 and 42 is: 
The difference between 87 and 52 is: 
The difference between 80 and 50 is: 
The difference between 60 and 52 is: 
The difference between 80 and 62 is: 
The difference between 89 and 51 is: 
The difference between 80 and 52 is: 