Most of my early career was spent avoiding math. Didn’t go to university right out of high-school, in part due to a bad trig experience. Later, searched out an “easy” technical university degree the US Air Force would accept for a pilot-training-destination university scholarship; found a bachelor of science in business that had two math courses, Air Force classified it as ‘technical’, so 'ere we-go! I eventually ended up with three degrees in computer science, four math courses total. It can be done… 
This later caught up with me in my final job before retirement. Actually, it started in my doctorate, where my dissertation chair told me in a convene that, “Gee, I think the particular knee in the curve you’re looking for is the second derivative.” Spent two weeks re-learning derivative calculus from that last chapter in the business math book, re-working my data, couldn’t find that correlation. Went to the next convene to report that, he goes, “huh, I think you’re right.” Damned him… 
But the last job was about a ballistic missile, and all the ballistic things they do. So Taylor Series, something I’d never had in school, and all the different ballistic propagators out there, even coded up some to make a toy 3D modeler. Interesting, but learning a particular math thing when my algebra chops were shit was a bit frustrating…
Further have recognized my lack of math chops here, wrapping my head around the technical aspects of photography. I find it interesting that so much reliable math has been divined from what is basically a subjective human behavior, color interpretation. Even then, there’s a lot of “good enough for gov’t work” acceptance of results in the genre, proved that to myself measuring camera spectral response with cheap wood-and-cardboard devices, and getting within 1 dE of “lab grade” measurements.
Can’t seem to find a hobby where math doesn’t eventually chase me down. Recently re-engaged my old model railroading hobby, hey, what could be simpler, no? NOT, when I started modeling buildings I ran into “roof math”, trigonometry based on right triangles and ‘rise-run’. Got worse exploring writing simple CAD software, same sort of thing as I did with rawproc, more trig to make user-interface tools the available libraries don’t offer. Cripes…
So, young people out there, advice: “Be kind. Eat your Wheaties. Pay attention in your math classes…” 
, but that was not the point of my intervention. Of course there is some math - hence my term “understandable”.