The difference between 83 and 28 is: 
The difference between 78 and 21 is: 
The difference between 89 and 28 is: 
The difference between 83 and 22 is: 
The difference between 93 and 28 is: 
The difference between 83 and 38 is: 
The difference between 89 and 24 is: 
The difference between 83 and 28 is: 