The difference between 90 and 30 is: 
The difference between 57 and 33 is: 
The difference between 96 and 30 is: 
The difference between 90 and 30 is: 
The difference between 50 and 30 is: 
The difference between 90 and 10 is: 
The difference between 90 and 33 is: 
The difference between 90 and 30 is: 