The difference between 74 and 42 is: 
The difference between 83 and 40 is: 
The difference between 79 and 42 is: 
The difference between 74 and 42 is: 
The difference between 54 and 42 is: 
The difference between 74 and 32 is: 
The difference between 81 and 49 is: 
The difference between 74 and 42 is: 