Posted on Oct 4, 2020

Japanese Multiplication | Multiply using lines | Multliplication Trick | Fast math | Zero Math

CPT Jack Durish

339

It really works. It's really easy. Just do it. Don't try to understand how it works. That will keep you awake nights

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Posted 4 y ago

Responses: 1

Posted 4 y ago

Pretty cool. I suspect it stops being practical with large numbers like 789 x 769

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CPT Jack Durish

4 y

No, it works there too...you just need a larger piece of paper

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SPC Kevin Ford

4 y

CPT Jack Durish Lol. One of those big laminated sheets we used to cover our maps with to draw on.

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