# FAQ: Variables - Arithmetic Operators

#1

This community-built FAQ covers the “Arithmetic Operators” exercise from the lesson “Variables”.

Paths and Courses
This exercise can be found in the following Codecademy content:

## FAQs on the exercise Arithmetic Operators

There are currently no frequently asked questions associated with this exercise – that’s where you come in! You can contribute to this section by offering your own questions, answers, or clarifications on this exercise. Ask or answer a question by clicking reply () below.

If you’ve had an “aha” moment about the concepts, formatting, syntax, or anything else with this exercise, consider sharing those insights! Teaching others and answering their questions is one of the best ways to learn and stay sharp.

## Join the Discussion. Help a fellow learner on their journey.

Agree with a comment or answer? Like () to up-vote the contribution!

Found a bug? Report it!

Have a question about your account or billing? Reach out to our customer support team!

None of the above? Find out where to ask other questions here!

#2

This is the first lesson that contains the line `return 0;`. What does this mean?

#3

Hello jjtumelty,

return 0; is because main() is a function that needs to return a -int- value, -return 0;- means that main() function returns a int with the value of zero, maybe this is difficult now but in the next topics this will be clear for you.

Regards,

José.

#4

numbers for status codes is very common in program. 0 is very often used to indicate the function/method ran/completed successfully

i mean who doesn’t know 404 page not found? So numbers are very common to indicate success or failure (and what kind of failure), particular useful if your program grows in size.