The difference between 65 and 29 is: 
The difference between 51 and 25 is: 
The difference between 69 and 29 is: 
The difference between 65 and 21 is: 
The difference between 45 and 29 is: 
The difference between 65 and 19 is: 
The difference between 69 and 23 is: 
The difference between 65 and 29 is: 