The difference between 49 and 12 is: 
The difference between 84 and 80 is: 
The difference between 43 and 12 is: 
The difference between 49 and 14 is: 
The difference between 99 and 12 is: 
The difference between 49 and 22 is: 
The difference between 53 and 16 is: 
The difference between 49 and 12 is: 