I did something like this to learn the times table in grade school. What the school wanted us to do seemed ridiculous and extra boring, and I figured that if I

I did something like this to learn the times table in grade school. What the school wanted us to do seemed ridiculous and extra boring, and I figured that if I just kept a visible table handy while doing the multiplication exercises, it'd go into memory along the way "for free". This worked. Maybe it might not work well for others, though you'd expect there's some learning method better than how they did it in my day, on both effectiveness and fun. (I forget exactly how we were supposed to do it.)