The difference between 83 and 63 is: 
The difference between 91 and 27 is: 
The difference between 87 and 63 is: 
The difference between 83 and 60 is: 
The difference between 73 and 63 is: 
The difference between 83 and 13 is: 
The difference between 86 and 69 is: 
The difference between 83 and 63 is: 