The difference between 25 and 18 is: 
The difference between 93 and 36 is: 
The difference between 29 and 18 is: 
The difference between 25 and 10 is: 
The difference between 75 and 18 is: 
The difference between 25 and 18 is: 
The difference between 28 and 11 is: 
The difference between 25 and 18 is: 