The difference between 90 and 72 is: 
The difference between 96 and 42 is: 
The difference between 95 and 72 is: 
The difference between 90 and 70 is: 
The difference between 80 and 72 is: 
The difference between 90 and 22 is: 
The difference between 99 and 71 is: 
The difference between 90 and 72 is: 