The difference between 23 and 19 is: 
The difference between 83 and 63 is: 
The difference between 29 and 19 is: 
The difference between 23 and 12 is: 
The difference between 53 and 19 is: 
The difference between 23 and 19 is: 
The difference between 25 and 11 is: 
The difference between 23 and 19 is: 