The difference between 94 and 90 is: 
The difference between 30 and 21 is: 
The difference between 91 and 90 is: 
The difference between 94 and 92 is: 
The difference between 94 and 90 is: 
The difference between 94 and 30 is: 
The difference between 101 and 97 is: 
The difference between 94 and 90 is: 