The difference between 70 and 37 is: 
The difference between 90 and 81 is: 
The difference between 79 and 37 is: 
The difference between 70 and 30 is: 
The difference between 80 and 37 is: 
The difference between 70 and 27 is: 
The difference between 73 and 30 is: 
The difference between 70 and 37 is: 