The difference between 75 and 71 is: 
The difference between 92 and 42 is: 
The difference between 78 and 71 is: 
The difference between 75 and 70 is: 
The difference between 85 and 71 is: 
The difference between 75 and 21 is: 
The difference between 83 and 79 is: 
The difference between 75 and 71 is: 