The difference between 81 and 43 is: 
The difference between 94 and 48 is: 
The difference between 85 and 43 is: 
The difference between 81 and 40 is: 
The difference between 71 and 43 is: 
The difference between 81 and 53 is: 
The difference between 89 and 41 is: 
The difference between 81 and 43 is: 