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How to Do Math In Your Head : Quick Math Tricks: Thinking of Numbers as Blocks

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Uploaded by on Feb 22, 2008

Learn how to think of numbers as blocks with the free math tricks in this video series. Get mental math tips from these online tutoring lessons.

Expert: Sean Salazar
Bio: Sean Salazar has taught in both Schools and Community Centers, specializing in Math and English.
Filmmaker: sean salazar

Category:

Science & Technology

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License:

Standard YouTube License

  • likes, 7 dislikes

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All Comments (26)

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  • i knw how to do this math but dude your makin me dizzy

  • Thanks for the great trick, try doing a multiplication n division one next

  • This is sort of longer! 12-7=5, 6-4=2 :>25

  • Cool tip, dude!

    ¡Muy chevre su método!

    Muito legal seu método, cara!

  • @najeebputhiyallam we can't because the output is less than 0 ( although I'm not entirely sure about this). FUCK - FAKE on the other hand is 0x13F806 or 1308678.

  • DO this FAKE - FUCK

  • @gabyh666 (70-50)=(20-4)=(16+2)=18...tha­t's it..

  • @gabyh666 ya u can

  • hey! What about.... 72-54? I couldn't do it that way :/

  • @KianaM170 hehe ty -.-

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