The difference between 86 and 63 is: 
The difference between 87 and 31 is: 
The difference between 89 and 63 is: 
The difference between 86 and 63 is: 
The difference between 96 and 63 is: 
The difference between 86 and 53 is: 
The difference between 91 and 68 is: 
The difference between 86 and 63 is: 