Cool Math Trick

MOS95B · 2007-01-29 20:52:35

How Does That Work? (with video) (http://video.yahoo.com/video/play?vid=cc2559cf688df2a77342796fbfd34466.1661607&cache=1)

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Jan 29, 2007 | 03:52 PM

MOS95B

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From: Robbinsdale, MN

Cool Math Trick

How Does That Work? (with video)

Jan 29, 2007 | 05:53 PM

PontiacDad

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From: Purgatory

Thats some spooky stuff there....neat

Jan 29, 2007 | 07:28 PM

BLACK94SSEi

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From: Melrose

Cool Now do 125,000 X 2500 =

Jan 29, 2007 | 08:09 PM

bonnie94ssei

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312,500,000.

Yep, I used a calculator. It'* much quicker. lol

Jan 29, 2007 | 11:43 PM

BLACK94SSEi

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From: Melrose

lol good one. Try using the "magical" math trick lol!!

Jan 30, 2007 | 03:27 PM

lash

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From: Central Florida

Quote:

Originally Posted by BLACK94SSEi

Cool Now do 125,000 X 2500 =

Actually to use the "magical" math trick on that one, it'* as simple as removing the 5 zeroes, doing it with the 125 x 25, and then putting the 5 zeroes back on the end.

MUCH more difficult would be to make it 125125 x 2525

or MUCH worse, 789789 x 9898

see what I mean?