The difference between 73 and 25 is: 
The difference between 81 and 26 is: 
The difference between 79 and 25 is: 
The difference between 73 and 21 is: 
The difference between 83 and 25 is: 
The difference between 73 and 35 is: 
The difference between 79 and 21 is: 
The difference between 73 and 25 is: 