The difference between 87 and 57 is: 
The difference between 37 and 22 is: 
The difference between 88 and 57 is: 
The difference between 87 and 55 is: 
The difference between 67 and 57 is: 
The difference between 87 and 17 is: 
The difference between 84 and 59 is: 
The difference between 87 and 57 is: 