The difference between 98 and 42 is: 
The difference between 90 and 64 is: 
The difference between 93 and 42 is: 
The difference between 98 and 40 is: 
The difference between 58 and 42 is: 
The difference between 98 and 62 is: 
The difference between 105 and 49 is: 
The difference between 98 and 42 is: 