multiplication

Discussion in 'Elementary Education' started by Happy Lady, Sep 10, 2007.

  1. Happy Lady

    Happy Lady Rookie

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    Sep 10, 2007

    Would someone please share with me any methods to help children remember their facts? I know there is one for the nines using your fingers but can't remember it.

    Thanks!
     
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  3. Upsadaisy

    Upsadaisy Moderator

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    Sep 10, 2007

    For nines:

    Hold up your hands palms outwards. Starting on the left, each finger will be considered a number (1-9) which is multiplied by 9. If you want to multiply 1 x 9, fold down the 1 finger. What do you see to the right of the 1 finger? 9 fingers. So, the product of 1 and 9 is 9. Try it with the 5 finger. Fold it down. What do you see on the left of the 5 finger? 4 fingers. On the right of the 5 finger? 5 fingers. The product of 5 and 9 is 45.
     
  4. rchlkay

    rchlkay Companion

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    Sep 10, 2007

    I've tried the trick above with my students and many of them "get it." However, I did have a few that needed to see something more concrete. With these kids, I told them that every product would equal 9. For example, 6x5=45. (45) 4+5=9. To figure out what the first numeral would be in a 9's multiplication problem, subtract one number from the multiplier. Example: 3x9=27 ( One number from three is two.) From figuring out the one number before the multiplier and then adding that subtracting that number from nine, the student gets the right answer. I know, seems like a lot of work and I definitely recommend trying the fingers first. However, this has worked for me at times.
     
  5. ~Nicole

    ~Nicole Comrade

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    Sep 10, 2007

  6. Happy Lady

    Happy Lady Rookie

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    Sep 12, 2007

    Thanks for your responses. You were a big help!
     

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