The difference between 49 and 15 is: 
The difference between 84 and 20 is: 
The difference between 46 and 15 is: 
The difference between 49 and 10 is: 
The difference between 99 and 15 is: 
The difference between 49 and 35 is: 
The difference between 52 and 18 is: 
The difference between 49 and 15 is: 