The difference between 81 and 35 is: 
The difference between 85 and 83 is: 
The difference between 86 and 35 is: 
The difference between 81 and 30 is: 
The difference between 81 and 35 is: 
The difference between 81 and 65 is: 
The difference between 86 and 30 is: 
The difference between 81 and 35 is: 