The difference between 32 and 13 is: 
The difference between 64 and 21 is: 
The difference between 38 and 13 is: 
The difference between 32 and 10 is: 
The difference between 82 and 13 is: 
The difference between 32 and 23 is: 
The difference between 39 and 10 is: 
The difference between 32 and 13 is: 