[dba-SQLServer] 666+666=?

Don't forget the 9's hand trick:

Put down the finger of the number that you are multiplying with 9.

for example, 9x4

Hold you hands out with the backs of your hands facing you.
put down your left index finger (or 4th from the left)

The number of fingers to the left of the finger (3) that is down is your
first digit, those to the right (6) add up to your right digit.

It's so awesome to watch children light up when they learn something new.

:)

David


My kids loved showing their friends this trick.

On Mon, Sep 19, 2011 at 1:55 AM, Arthur Fuller <fuller.artful at gmail.com>wrote:

> Can they multiply yet? There are some cool things about multiplication. I
> like the elevens especially. 11*11=121. 11*11*11=12121, and so on. The
> nines
> are cool, too: take the digits in any multiple of nine and they add up to
> 9:
> 18, 27. 36. 45, etc.
>
> Arthur
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