The difference between 85 and 70 is: 
The difference between 83 and 80 is: 
The difference between 84 and 70 is: 
The difference between 85 and 73 is: 
The difference between 85 and 70 is: 
The difference between 85 and 40 is: 
The difference between 90 and 75 is: 
The difference between 85 and 70 is: 