The difference between 54 and 13 is: 
The difference between 26 and 23 is: 
The difference between 57 and 13 is: 
The difference between 54 and 10 is: 
The difference between 64 and 13 is: 
The difference between 54 and 43 is: 
The difference between 60 and 19 is: 
The difference between 54 and 13 is: 