The difference between 71 and 38 is: 
The difference between 97 and 55 is: 
The difference between 79 and 38 is: 
The difference between 71 and 30 is: 
The difference between 51 and 38 is: 
The difference between 71 and 18 is: 
The difference between 78 and 35 is: 
The difference between 71 and 38 is: 