The difference between 55 and 15 is: 
The difference between 26 and 23 is: 
The difference between 58 and 15 is: 
The difference between 55 and 11 is: 
The difference between 25 and 15 is: 
The difference between 55 and 45 is: 
The difference between 51 and 12 is: 
The difference between 55 and 15 is: 