The difference between 73 and 36 is: 
The difference between 44 and 30 is: 
The difference between 79 and 36 is: 
The difference between 73 and 30 is: 
The difference between 73 and 36 is: 
The difference between 73 and 16 is: 
The difference between 78 and 31 is: 
The difference between 73 and 36 is: 