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How to Do Math In Your Head : Quick Math Tricks: Multiplying by 11

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Uploaded by on Feb 22, 2008

Learn math tricks to multiply by 11 and solve math problems in your head in this free 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, 19 dislikes

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Top Comments

  • nah...i prefer the 10*25+25...much easier .

  • He would choose 69

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All Comments (94)

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  • Dude thnx alot

  • This is a great video

  • GOOD GOOD!

  • wow!! that's so cool

  • me: Teacher, will you punish me for somthing I didn't do?

    teacher: of course not!

    me: I didnt do my homework

    teacher: WHAT!?!!?

  • WTH!!!!!

    

  • I feel smart now

  • I like it

    

  • Thanks it helped me alot xxxx 

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