The difference between 48 and 39 is: 
The difference between 46 and 42 is: 
The difference between 49 and 39 is: 
The difference between 48 and 30 is: 
The difference between 48 and 39 is: 
The difference between 48 and 29 is: 
The difference between 49 and 30 is: 
The difference between 48 and 39 is: 