Fully remove Pages, Keynote and Numbers (El Cap)

Hello, I know that googling this question will throw back several pages, but most of them are shady "apple removal software" affiliates and some are just "drag and drop to recycle bin".

I did lookup here, but maybe due to language differences, I found only data on how to remove software, not specifically the ex iWork package.

I dragged and dropped them in the bin, I did a search for numbers, keynote and pages on Finder (i'm not too terminal savvy, so I could use some help in this).

I have a 256GB macbook, so space is something precious to me, as I use it to work. That is why I'm asking for yout help in order to make sure I deleted each file , cos maybe a few kb's won't hurt me, but some Mb will make a difference in my humble setup!

So if you know of any particular files or folder I should look into, I would really appreciate it!

Thanks in advance and I hope you all have a nice day!