The difference between 60 and 35 is: 
The difference between 78 and 72 is: 
The difference between 66 and 35 is: 
The difference between 60 and 30 is: 
The difference between 40 and 35 is: 
The difference between 60 and 45 is: 
The difference between 65 and 30 is: 
The difference between 60 and 35 is: 