The difference between 50 and 15 is: 
The difference between 60 and 26 is: 
The difference between 56 and 15 is: 
The difference between 50 and 10 is: 
The difference between 40 and 15 is: 
The difference between 50 and 35 is: 
The difference between 55 and 10 is: 
The difference between 50 and 15 is: 