The difference between 98 and 89 is: 
The difference between 94 and 91 is: 
The difference between 99 and 89 is: 
The difference between 98 and 83 is: 
The difference between 98 and 89 is: 
The difference between 98 and 79 is: 
The difference between 99 and 80 is: 
The difference between 98 and 89 is: 