The difference between 55 and 42 is: 
The difference between 46 and 20 is: 
The difference between 57 and 42 is: 
The difference between 55 and 44 is: 
The difference between 75 and 42 is: 
The difference between 55 and 32 is: 
The difference between 62 and 49 is: 
The difference between 55 and 42 is: 