The difference between 26 and 26 is: 
The difference between 66 and 65 is: 
The difference between 29 and 26 is: 
The difference between 26 and 21 is: 
The difference between 56 and 26 is: 
The difference between 26 and 16 is: 
The difference between 22 and 23 is: 
The difference between 26 and 26 is: 