The difference between 80 and 23 is: 
The difference between 78 and 30 is: 
The difference between 85 and 23 is: 
The difference between 80 and 20 is: 
The difference between 70 and 23 is: 
The difference between 80 and 33 is: 
The difference between 87 and 20 is: 
The difference between 80 and 23 is: 