The difference between 30 and 27 is: 
The difference between 79 and 12 is: 
The difference between 38 and 27 is: 
The difference between 30 and 20 is: 
The difference between 70 and 27 is: 
The difference between 30 and 17 is: 
The difference between 39 and 26 is: 
The difference between 30 and 27 is: 