The difference between 81 and 44 is: 
The difference between 55 and 53 is: 
The difference between 85 and 44 is: 
The difference between 81 and 40 is: 
The difference between 51 and 44 is: 
The difference between 81 and 24 is: 
The difference between 88 and 41 is: 
The difference between 81 and 44 is: 