#412620

Anonymous
Quote:
I don't have anything on the multiplication table memorized past 5.  You just break down the numbers and square roots to do multiplications past the axis of 5.
For instance, if we wanted 9 x 9.  I would just do 9 x 3(^2).  9 x 3 = 27.  Break down 27 into 20 + 7.  (20+7) x 3.  20 x 3 = 60.  7 x 3 = 21.  60 + 21 = 81.

Which is the samething as 9 x 9 = 81.

Would my life be easier if I memorized everything from 10 x 10?  Yes ~ but someone can say why not memorize 20 x 20 or 200 x 200?  Ditto ~ you learn this sort of math so you can do infinite calculations.  There's more to Math than just memorizing everything like a Monkey.

So what do you do when you want to divide, you break up the number as well  :D

Funny thing is in ancient times people used sexagesimal numeral system with ease and today people can't do basic operation with way easier decimal system  ;D

Slavorum

14 User(s) Online Join Server
  • Bjelas
  • MaRk0V
  • Vuk
  • Australian Santa
  • SinisterWidow
  • Shnickstara89