The difference between 93 and 12 is: 
The difference between 77 and 63 is: 
The difference between 93 and 12 is: 
The difference between 93 and 11 is: 
The difference between 63 and 12 is: 
The difference between 93 and 42 is: 
The difference between 100 and 19 is: 
The difference between 93 and 12 is: 