The difference between 54 and 50 is: 
The difference between 62 and 59 is: 
The difference between 52 and 50 is: 
The difference between 54 and 53 is: 
The difference between 64 and 50 is: 
The difference between 54 and 30 is: 
The difference between 61 and 57 is: 
The difference between 54 and 50 is: 