The difference between 72 and 36 is: 
The difference between 75 and 46 is: 
The difference between 77 and 36 is: 
The difference between 72 and 30 is: 
The difference between 92 and 36 is: 
The difference between 72 and 56 is: 
The difference between 78 and 32 is: 
The difference between 72 and 36 is: 