[Rendello]

I'm abhorrent at arithmetic and I think it affects me greatly. I know quite a few people who are barely literate and manage to get by in life, but it obviously makes things hard for them and strips them of opportunities (and they forego holding any identity that seems to "smart" for themselves). I think numeracy is similar.

I wonder how much better I could become as an adult at mental math. I did a math course a few years ago (Math Academy) and put some effort into improving my addition, subtraction, division, and multiplication, but I wish I'd done more up front. Even one-figure arithmetic is so fuzzy to me, like it's a hashtable where the keys don't line up to the right values. Can I unlearn that now? O(1) doesn't matter if the result is wrong.