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Michael Daniels Inner circle Isle of Man 1609 Posts |
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Scott Cram Inner circle 2678 Posts |
This gets quite a bit of coverage over at the Mind Your Decision blog: https://mindyourdecisions.com/blog/tag/multiply-by-lines/
...and here are a few advanced tricks with the concept: https://www.youtube.com/user/MindYourDec......by+lines |
boxjumper Veteran user 362 Posts |
Amazing. It's fitting that a people that use pictures instead of letters to communicate can use pictures to multiply.
BJ |
barneyS New user Virginia 28 Posts |
It's nice that the stick additions mirror our standard method of multiplying on paper, but it is hardly faster and you don't understand place values when you use the sticks. Also, the examples side step the problem of having a carry by using small digits. Still, it is good that there is a visual counterpart to the pencil and paper method.
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