The difference between 67 and 60 is: 
The difference between 89 and 70 is: 
The difference between 67 and 60 is: 
The difference between 67 and 60 is: 
The difference between 87 and 60 is: 
The difference between 67 and 50 is: 
The difference between 71 and 64 is: 
The difference between 67 and 60 is: 