The difference between 78 and 63 is: 
The difference between 55 and 41 is: 
The difference between 74 and 63 is: 
The difference between 78 and 61 is: 
The difference between 88 and 63 is: 
The difference between 78 and 63 is: 
The difference between 83 and 68 is: 
The difference between 78 and 63 is: 