The difference between 45 and 29 is: 
The difference between 52 and 19 is: 
The difference between 49 and 29 is: 
The difference between 45 and 21 is: 
The difference between 55 and 29 is: 
The difference between 45 and 29 is: 
The difference between 47 and 21 is: 
The difference between 45 and 29 is: 