The difference between 61 and 22 is: 
The difference between 84 and 23 is: 
The difference between 66 and 22 is: 
The difference between 61 and 20 is: 
The difference between 71 and 22 is: 
The difference between 61 and 42 is: 
The difference between 69 and 20 is: 
The difference between 61 and 22 is: 