The difference between 90 and 84 is: 
The difference between 40 and 16 is: 
The difference between 99 and 84 is: 
The difference between 90 and 80 is: 
The difference between 90 and 84 is: 
The difference between 90 and 44 is: 
The difference between 96 and 80 is: 
The difference between 90 and 84 is: 