The difference between 45 and 28 is: 
The difference between 86 and 65 is: 
The difference between 49 and 28 is: 
The difference between 45 and 23 is: 
The difference between 85 and 28 is: 
The difference between 45 and 28 is: 
The difference between 48 and 21 is: 
The difference between 45 and 28 is: 