The difference between 97 and 67 is: 
The difference between 61 and 43 is: 
The difference between 98 and 67 is: 
The difference between 97 and 63 is: 
The difference between 87 and 67 is: 
The difference between 97 and 77 is: 
The difference between 91 and 68 is: 
The difference between 97 and 67 is: 