The difference between 79 and 40 is: 
The difference between 92 and 55 is: 
The difference between 76 and 40 is: 
The difference between 79 and 41 is: 
The difference between 79 and 40 is: 
The difference between 79 and 50 is: 
The difference between 80 and 41 is: 
The difference between 79 and 40 is: 