The difference between 61 and 24 is: 
The difference between 45 and 44 is: 
The difference between 65 and 24 is: 
The difference between 61 and 20 is: 
The difference between 31 and 24 is: 
The difference between 61 and 54 is: 
The difference between 67 and 20 is: 
The difference between 61 and 24 is: 