The difference between 38 and 18 is: 
The difference between 30 and 24 is: 
The difference between 39 and 18 is: 
The difference between 38 and 16 is: 
The difference between 98 and 18 is: 
The difference between 38 and 18 is: 
The difference between 36 and 19 is: 
The difference between 38 and 18 is: 