The difference between 86 and 21 is: 
The difference between 42 and 22 is: 
The difference between 84 and 21 is: 
The difference between 86 and 23 is: 
The difference between 96 and 21 is: 
The difference between 86 and 41 is: 
The difference between 94 and 29 is: 
The difference between 86 and 21 is: 