The difference between 80 and 69 is: 
The difference between 98 and 49 is: 
The difference between 89 and 69 is: 
The difference between 80 and 60 is: 
The difference between 90 and 69 is: 
The difference between 80 and 39 is: 
The difference between 88 and 67 is: 
The difference between 80 and 69 is: 