The difference between 81 and 78 is: 
The difference between 96 and 76 is: 
The difference between 89 and 78 is: 
The difference between 81 and 70 is: 
The difference between 91 and 78 is: 
The difference between 81 and 48 is: 
The difference between 85 and 72 is: 
The difference between 81 and 78 is: 