The difference between 49 and 38 is: 
The difference between 84 and 13 is: 
The difference between 49 and 38 is: 
The difference between 49 and 37 is: 
The difference between 99 and 38 is: 
The difference between 49 and 38 is: 
The difference between 50 and 39 is: 
The difference between 49 and 38 is: 