The difference between 84 and 45 is: 
The difference between 90 and 18 is: 
The difference between 87 and 45 is: 
The difference between 84 and 43 is: 
The difference between 84 and 45 is: 
The difference between 84 and 55 is: 
The difference between 89 and 40 is: 
The difference between 84 and 45 is: 