Best way to add maths content

Hi all, I have a series of Youtube video tutorials on maths topics like algebra, calc, trig etc) and each one has a PDF that my students can download and try the problems first from.  I have been seaching for the best way to do this using H5P to integrate into my Moodle course.  None of the features seem to like URLS and PDF's.  Hoping someone can suggest a way to do this please.  Each topic (like algrebra) has about 6 Youtube Video tutorials and 6 PDF's.  Thank you!