The difference between 67 and 11 is: 
The difference between 79 and 43 is: 
The difference between 63 and 11 is: 
The difference between 67 and 16 is: 
The difference between 67 and 11 is: 
The difference between 67 and 51 is: 
The difference between 71 and 15 is: 
The difference between 67 and 11 is: 