The difference between 29 and 22 is: 
The difference between 85 and 81 is: 
The difference between 25 and 22 is: 
The difference between 29 and 20 is: 
The difference between 39 and 22 is: 
The difference between 29 and 12 is: 
The difference between 35 and 28 is: 
The difference between 29 and 22 is: 