If you train Python:
-you can use sets to finger arrays

kek, this is 7Kyu Kata

You will be given a number and you will need to return it as a string in Expanded Form

expandedForm(70304); // Should return '70000 + 300 + 4'

Yes, you have to return a string.

Exactly!, i am not getting the question, should we have to return the string like "7000 + 30" like this?, or should we have to add this?

true, its very unclear and confusing

number + folding zeroes?)

Not a kata issue, read the instructions again or the posts below, the test is ok. You have to do it by word.

all even indexed characters in each word upper cased, and all odd indexed characters in each word lower cased.

Just try reverse logic to encoder;)

kek i died. this is not for 6th :/ imo. but thats subjective

Can't be changed.

I have the same problem

Read this: https://github.com/codewars/codewars.com/wiki/Troubleshooting-your-solution#how-do-i-post-to-a-kata-discourse
Post your code as instructed there so we can check what's wrong with it. Check also how to print the input value, so you can do a manual check of the tests your code doesn't pass.