Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Write Better Python Cleaner Code Operator Spacing

Need Help!

I don't understand what I've done wrong here. I've put a space at the end but it's not working.

numbers = [1, 2, 3, 4, 5]

def add(num1, num2):
    return num1 + num2

def subtract(num1, num2):
    return num1 - num2

def mathy(num1, num2):
    up = add(5 + 7 + 7 + 9)
    down = subtract(6, 3)
    return add(up, down)

1 Answer

Hey Yusuf, you were very close. I see in line 13 you've replaced the comma with an addition operator. Using the addition operator there makes it all one statement, when you're needing to provide two arguments(5 +7, and 7 + 9). So if you call your add function like: add(5 + 7, 7 + 9) it should pass! Hope this helps.