The difference between 49 and 18 is: 
The difference between 70 and 55 is: 
The difference between 49 and 18 is: 
The difference between 49 and 12 is: 
The difference between 59 and 18 is: 
The difference between 49 and 38 is: 
The difference between 50 and 19 is: 
The difference between 49 and 18 is: 