The difference between 94 and 38 is: 
The difference between 36 and 20 is: 
The difference between 99 and 38 is: 
The difference between 94 and 31 is: 
The difference between 64 and 38 is: 
The difference between 94 and 18 is: 
The difference between 99 and 33 is: 
The difference between 94 and 38 is: 