Japan: Where even the math is weird.

Log in with a social network:

Japan: Where even the math is weird.

The Trending 10

- WEEK
- MONTH
- YEAR

12

11

257,869

483

I got stuck at `5`

Imagine quantum physics or simple integral methods.

I doubt I would come up with this by my self, but this appears quite "simple".

Its actually from India.as a kid I could use this method before I learned the western method.

My teachers actually graded my work as an F once because even though my answers were correct, I could not show them my working out.

They count the number of times lines cross eachother. They go left to right, counting diagonally. So 1, 5, 6. Means that top left the lines cross 1 time. middle diagonal they cross a total of 5 times and bottom right cross 6 times.

The numbers represent digits and 1`s, 10`s, 100`s and so on. going from high to low. The 1 represent 100, 5 represent 50 and the 6 representy 6.

If the lines add up to say 12. Then, given the lines location, it represents 12, 120, 1200 and/or so on.

Try to apply it to the slightly larger calculation. It makes sense, in a japanese kind of way.

No one I always hated mathS.

996 * 693 = 690228

Less than a minute to do by "old fashion" hand calculation. This is slow aswell I suppose.

About 2 minutes with the japanese system.

Id love to see a japanese person do this, I presume the drawing of the system becomes less needed once you get used to it.

553 * 352 = 194656

I tried it the japanese way. Perhaps once you are very familiar with the system its fast. But it took me longer to sit and count and add than it took the way I was taught.

I cant...I dont even...what?

In my head I prefer weird approximations or dealing with fractions.

- Japan: Where even the math is weird.