The difference between 15 and 11 is: 
The difference between 58 and 36 is: 
The difference between 14 and 11 is: 
The difference between 15 and 14 is: 
The difference between 65 and 11 is: 
The difference between 15 and 11 is: 
The difference between 20 and 16 is: 
The difference between 15 and 11 is: 