The difference between 67 and 39 is: 
The difference between 74 and 55 is: 
The difference between 69 and 39 is: 
The difference between 67 and 35 is: 
The difference between 97 and 39 is: 
The difference between 67 and 29 is: 
The difference between 68 and 30 is: 
The difference between 67 and 39 is: 