> But it's possible to do long division (and other "paper" techniques) in your head if your short-term memory is good enough.
That's actually how I learned long division. I didn't want to pay attention to any of these weird methods of arithmetic that require me to write things so I just did it all in my head and this happened to be a method that worked (go figure!). Many of my K12 math teachers understandably didn't like the fact that I would write down the correct answers to things without showing how I got there.
On the topic of this article, I'm actually really glad for this trick. If anything is my hobby it is mental arithmetic.
That's actually how I learned long division. I didn't want to pay attention to any of these weird methods of arithmetic that require me to write things so I just did it all in my head and this happened to be a method that worked (go figure!). Many of my K12 math teachers understandably didn't like the fact that I would write down the correct answers to things without showing how I got there.
On the topic of this article, I'm actually really glad for this trick. If anything is my hobby it is mental arithmetic.