The difference between 59 and 15 is: 
The difference between 96 and 30 is: 
The difference between 57 and 15 is: 
The difference between 59 and 16 is: 
The difference between 79 and 15 is: 
The difference between 59 and 35 is: 
The difference between 60 and 16 is: 
The difference between 59 and 15 is: 