The difference between 63 and 54 is: 
The difference between 84 and 37 is: 
The difference between 65 and 54 is: 
The difference between 63 and 51 is: 
The difference between 63 and 54 is: 
The difference between 63 and 54 is: 
The difference between 69 and 50 is: 
The difference between 63 and 54 is: 