# multiplication

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

Joined:
Sep 16, 2006
Messages:
66
0

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!

Joined:
Aug 2, 2002
Messages:
18,938
681

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. ### rchlkayCompanion

Joined:
Sep 2, 2006
Messages:
237
0

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.

Joined:
Jun 13, 2007
Messages:
295
0

Sep 10, 2007

Joined:
Sep 16, 2006
Messages:
66