The difference between 40 and 35 is: 
The difference between 80 and 34 is: 
The difference between 48 and 35 is: 
The difference between 40 and 30 is: 
The difference between 60 and 35 is: 
The difference between 40 and 15 is: 
The difference between 48 and 33 is: 
The difference between 40 and 35 is: 