The difference between 45 and 30 is: 
The difference between 98 and 84 is: 
The difference between 47 and 30 is: 
The difference between 45 and 32 is: 
The difference between 75 and 30 is: 
The difference between 45 and 10 is: 
The difference between 53 and 38 is: 
The difference between 45 and 30 is: 