The difference between 56 and 13 is: 
The difference between 98 and 11 is: 
The difference between 57 and 13 is: 
The difference between 56 and 11 is: 
The difference between 66 and 13 is: 
The difference between 56 and 33 is: 
The difference between 60 and 17 is: 
The difference between 56 and 13 is: 