The difference between 28 and 22 is: 
The difference between 51 and 18 is: 
The difference between 27 and 22 is: 
The difference between 28 and 26 is: 
The difference between 58 and 22 is: 
The difference between 28 and 12 is: 
The difference between 31 and 25 is: 
The difference between 28 and 22 is: 