The difference between 81 and 32 is: 
The difference between 47 and 29 is: 
The difference between 84 and 32 is: 
The difference between 81 and 30 is: 
The difference between 51 and 32 is: 
The difference between 81 and 12 is: 
The difference between 89 and 30 is: 
The difference between 81 and 32 is: 