As someone who struggled with math (and also did not enjoy it as I got older) in school, they're not bad, but I think some verbal explanation and more examples would be beneficial. Neither video had sound from what I could tell, and it was just the text on the screen for about 20 seconds. I ended up pausing it so I could read it, and while it made sense in the end, it just felt like it wasn't enough for me to fully grasp the concept. I think maybe breaking it down step by step would be helpful instead of just leaving a bunch of text on the screen to read over the course of 20 seconds (assuming you're not pausing like I did) and maybe doing additional examples? I dunno, I guess just from the perspective of someone who didn't really understand math, if I was in school and trying to understand the concepts explained in the videos and stumbled upon these, I think they'd help, but I think I'd end up having to go find another video to help explain it further. They're definitely a good start though!
On an unrelated note though, in the GCF video on the first line, it's referred to as the GFC. I'm sure it's just a typo, but definitely something worth fixing in future versions of the video!
Your descriptions on how to achieve the solutions to each equation is well written and does a great job teaching those who struggle with math. (I'm one of those people lol.) But I think verbal explanations would work better with this topic. I agree with what @Felly said having each step broken down would do a much better job of teaching people math.