The difference between 68 and 60 is: 
The difference between 75 and 71 is: 
The difference between 61 and 60 is: 
The difference between 68 and 64 is: 
The difference between 98 and 60 is: 
The difference between 68 and 50 is: 
The difference between 72 and 64 is: 
The difference between 68 and 60 is: 