The difference between 75 and 64 is: 
The difference between 57 and 21 is: 
The difference between 75 and 64 is: 
The difference between 75 and 60 is: 
The difference between 95 and 64 is: 
The difference between 75 and 64 is: 
The difference between 80 and 69 is: 
The difference between 75 and 64 is: 