The difference between 48 and 21 is: 
The difference between 71 and 51 is: 
The difference between 46 and 21 is: 
The difference between 48 and 26 is: 
The difference between 98 and 21 is: 
The difference between 48 and 21 is: 
The difference between 54 and 27 is: 
The difference between 48 and 21 is: 