how the japanese count dem stacks.

[RABBIT]

[Wolfattak]

One of my math teachers showed me this once. It's pretty cool because its the same concept I have always used to multiply large numbers in my head. This is actually just an illustration of how expanding brackets works. Break each number apart into ones, tens, hundreds, etc and multiply the brackets. In the first example 21x13.

examine as

(20+1)(10+3) = 200+60+10+3 = 273

In each column in the graph is the same. in the hundreads column 2 (200) in the tens column is 6+1 (60+10) and in the ones column 3 (3).

<3 math

[advent]

Ahhhhh, exams are done stop with the numbers!

[m_melen]

woww.

[Snake556]

I've always hated math. But that was friggen cool! I have to keep that in mind!

[M13]

you know if you actually do it the way they teach you at school you'll get it done faster.

let alone a calc...

[NeptuneGTR]

This way is faster

[Nismo_line]

holy **** that is super fast

[Snake556]

I don't even know what to say about that. That's just scary

[DarkCaporaL]

Brainwashed.

[RHDskyline]

A good brainwashed though. Id honestly rather have kids like that. Then kids who can memorize the order or their tv shows. OR what video game/computer system come out on what day.

We need some back to basics raw smarts in the world

we are being taken over by greed and manipulation

[Murchie]

that's amazingg..

[flipridah17]

whoa that's cool