The difference between 67 and 67 is: 
The difference between 98 and 30 is: 
The difference between 69 and 67 is: 
The difference between 67 and 61 is: 
The difference between 77 and 67 is: 
The difference between 67 and 47 is: 
The difference between 66 and 68 is: 
The difference between 67 and 67 is: 