The difference between 51 and 43 is: 
The difference between 56 and 39 is: 
The difference between 59 and 43 is: 
The difference between 51 and 40 is: 
The difference between 61 and 43 is: 
The difference between 51 and 33 is: 
The difference between 59 and 41 is: 
The difference between 51 and 43 is: 