The difference between 97 and 50 is: 
The difference between 93 and 60 is: 
The difference between 97 and 50 is: 
The difference between 97 and 52 is: 
The difference between 87 and 50 is: 
The difference between 97 and 70 is: 
The difference between 104 and 57 is: 
The difference between 97 and 50 is: 