The difference between 91 and 89 is: 
The difference between 43 and 14 is: 
The difference between 99 and 89 is: 
The difference between 91 and 80 is: 
The difference between 91 and 89 is: 
The difference between 91 and 79 is: 
The difference between 92 and 80 is: 
The difference between 91 and 89 is: 