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Easy Mental Multiplication Trick Video

 skywood 2006-11-17
Easy Mental Multiplication Trick
How to transform a multiplication into addition through the drawing of a stool. It works with any numbers if you keep the right partition. You can verify with your calculator!

Showing 20 out of 54 comments Show all | Add Comment
  • . [ +1 interesting ]
    Try 50x10

    Ups
    by ?Ikon_PT , 15th November
    reply / moderate 848363,296904
      ?
    • ... [ +4 funny ]
      y just add a zero to 50, thats another trick lol
      by ?mikelikedikedesktop , 15th November
      reply / moderate 849706,296904
        ?
      • Good idea!!
        =)
        by ?MortarMan , 16th November
        reply / moderate 853525,296904
          ?
    • You can do it! [ +1 good ]
      for the zero, use a dotted line. if a dotted line cross a plain line count zero. if a dotted line cross a dotted line count zero.
      by ?Akahad , 15th November
      reply / moderate 848697,296904
        ?
    • doesnot matter
      you could ignore zeros and then put them again...
      by ?malo92 , 16th November
      reply / moderate 853616,296904
        ?
    • cool one dude
      like tht
      by ?maverick99 , 16th November
      reply / moderate 851804,296904
        ?
    • Don‘t you mean
      999x999?
      by ?Hero_Sky , 16th November
      reply / moderate 851610,296904
        ?
    • No problem
      Zero would just be zero lines (i.e. no lines crossed). You could use a different colour to represent this, or skip over where you otherwise would have crossed some lines.
      by ?Etrawl_Jr , 15th November
      reply / moderate 849556,296904
        ?

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