The difference between 99 and 48 is: 
The difference between 63 and 11 is: 
The difference between 99 and 48 is: 
The difference between 99 and 40 is: 
The difference between 89 and 48 is: 
The difference between 99 and 48 is: 
The difference between 100 and 49 is: 
The difference between 99 and 48 is: 