The difference between 57 and 29 is: 
The difference between 94 and 85 is: 
The difference between 59 and 29 is: 
The difference between 57 and 22 is: 
The difference between 77 and 29 is: 
The difference between 57 and 49 is: 
The difference between 59 and 21 is: 
The difference between 57 and 29 is: 