The difference between 68 and 14 is: 
The difference between 46 and 40 is: 
The difference between 68 and 14 is: 
The difference between 68 and 15 is: 
The difference between 38 and 14 is: 
The difference between 68 and 34 is: 
The difference between 72 and 18 is: 
The difference between 68 and 14 is: 