The difference between 78 and 67 is: 
The difference between 54 and 13 is: 
The difference between 79 and 67 is: 
The difference between 78 and 67 is: 
The difference between 88 and 67 is: 
The difference between 78 and 27 is: 
The difference between 80 and 69 is: 
The difference between 78 and 67 is: 