The difference between 72 and 72 is: 
The difference between 38 and 23 is: 
The difference between 76 and 72 is: 
The difference between 72 and 71 is: 
The difference between 92 and 72 is: 
The difference between 72 and 52 is: 
The difference between 73 and 74 is: 
The difference between 72 and 72 is: 