The difference between 90 and 47 is: 
The difference between 68 and 23 is: 
The difference between 98 and 47 is: 
The difference between 90 and 40 is: 
The difference between 90 and 47 is: 
The difference between 90 and 77 is: 
The difference between 93 and 40 is: 
The difference between 90 and 47 is: 