The difference between 85 and 50 is: 
The difference between 38 and 31 is: 
The difference between 85 and 50 is: 
The difference between 85 and 53 is: 
The difference between 85 and 50 is: 
The difference between 85 and 10 is: 
The difference between 90 and 55 is: 
The difference between 85 and 50 is: 