The difference between 89 and 28 is: 
The difference between 77 and 15 is: 
The difference between 89 and 28 is: 
The difference between 89 and 28 is: 
The difference between 69 and 28 is: 
The difference between 89 and 48 is: 
The difference between 90 and 29 is: 
The difference between 89 and 28 is: 