The difference between 52 and 45 is: 
The difference between 99 and 39 is: 
The difference between 59 and 45 is: 
The difference between 52 and 41 is: 
The difference between 72 and 45 is: 
The difference between 52 and 35 is: 
The difference between 58 and 41 is: 
The difference between 52 and 45 is: 