3 ms·
I use the Trachtenberg speed system of mathematics to do mental math. I can reliably do any 2 digit by 2 digit number and most of the time do 3 by 3 digit numbe
by mruts 7y ago
I use the Trachtenberg speed system of mathematics to do mental math. I can reliably do any 2 digit by 2 digit number and most of the time do 3 by 3 digit numbers. Does anyone know if it’s possible for an adult (I’m 26) to do better with soroban training? The book I had as a kid (translated from japanese) said I would never get good at it after the age of 12.. but that sounds kind of defeatist to me.
- Aeolun 7y agoI think they just write that so kids feel more compelled to put in an effort. It may be a bit harder as an adult, but by no means impossible (especially if your goal is 3 or 4 digit numbers).