The difference between 66 and 16 is: 
The difference between 71 and 70 is: 
The difference between 67 and 16 is: 
The difference between 66 and 10 is: 
The difference between 86 and 16 is: 
The difference between 66 and 56 is: 
The difference between 66 and 17 is: 
The difference between 66 and 16 is: 