The difference between 94 and 79 is: 
The difference between 81 and 21 is: 
The difference between 99 and 79 is: 
The difference between 94 and 73 is: 
The difference between 94 and 79 is: 
The difference between 94 and 39 is: 
The difference between 97 and 72 is: 
The difference between 94 and 79 is: 