The difference between 89 and 78 is: 
The difference between 88 and 36 is: 
The difference between 89 and 78 is: 
The difference between 89 and 72 is: 
The difference between 89 and 78 is: 
The difference between 89 and 68 is: 
The difference between 90 and 79 is: 
The difference between 89 and 78 is: 