The difference between 55 and 10 is: 
The difference between 99 and 42 is: 
The difference between 52 and 10 is: 
The difference between 55 and 12 is: 
The difference between 75 and 10 is: 
The difference between 55 and 40 is: 
The difference between 63 and 18 is: 
The difference between 55 and 10 is: 