The difference between 70 and 19 is: 
The difference between 99 and 75 is: 
The difference between 79 and 19 is: 
The difference between 70 and 10 is: 
The difference between 70 and 19 is: 
The difference between 70 and 69 is: 
The difference between 79 and 18 is: 
The difference between 70 and 19 is: 