The difference between 68 and 57 is: 
The difference between 84 and 51 is: 
The difference between 69 and 57 is: 
The difference between 68 and 54 is: 
The difference between 98 and 57 is: 
The difference between 68 and 27 is: 
The difference between 70 and 59 is: 
The difference between 68 and 57 is: 