The difference between 84 and 35 is: 
The difference between 20 and 16 is: 
The difference between 89 and 35 is: 
The difference between 84 and 31 is: 
The difference between 64 and 35 is: 
The difference between 84 and 55 is: 
The difference between 89 and 30 is: 
The difference between 84 and 35 is: 