The difference between 90 and 36 is: 
The difference between 84 and 54 is: 
The difference between 98 and 36 is: 
The difference between 90 and 30 is: 
The difference between 50 and 36 is: 
The difference between 90 and 66 is: 
The difference between 99 and 35 is: 
The difference between 90 and 36 is: 