The difference between 81 and 34 is: 
The difference between 70 and 13 is: 
The difference between 88 and 34 is: 
The difference between 81 and 30 is: 
The difference between 41 and 34 is: 
The difference between 81 and 34 is: 
The difference between 88 and 31 is: 
The difference between 81 and 34 is: 