The difference between 63 and 59 is: 
The difference between 97 and 88 is: 
The difference between 69 and 59 is: 
The difference between 63 and 50 is: 
The difference between 63 and 59 is: 
The difference between 63 and 19 is: 
The difference between 66 and 52 is: 
The difference between 63 and 59 is: 