The difference between 89 and 19 is: 
The difference between 81 and 27 is: 
The difference between 89 and 19 is: 
The difference between 89 and 17 is: 
The difference between 49 and 19 is: 
The difference between 89 and 69 is: 
The difference between 80 and 11 is: 
The difference between 89 and 19 is: 