The difference between 70 and 60 is: 
The difference between 40 and 16 is: 
The difference between 78 and 60 is: 
The difference between 70 and 60 is: 
The difference between 70 and 60 is: 
The difference between 70 and 40 is: 
The difference between 73 and 67 is: 
The difference between 70 and 60 is: 