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  #1  
Old 03-10-2007, 09:32 PM
icky's Avatar
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Default Cool Math Trick

UNBELIEVABLE MATH

It is a math trick so unbelievable that it will stump you.

Personally I would like to know who came up with this and
why that person is not running the country.

1. Grab a calculator. (you won't be able to do this one in your head)

2. Key in the first three digits of your phone number (NOT the area code)

3. Multiply by 80

4. Add 1

5. Multiply by 250

6. Add the last 4 digits of your phone number

7. Add the last 4 digits of your phone number again

8. Subtract 250

9. Divide number by 2

Do you recognize the answer?
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  #2  
Old 04-10-2007, 11:19 AM
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Default

It's clever but actually not so complicated.
<Nerd Mode = 'On'>
  • - Step 3,5 and 9: The first 3 digits get multiplied first by 80 and then by 250 which is 20000
At the end it will be divided by 2 meaning that the first 3 digits will have been multiplied by 10000 (simply put they have 4 trailing zeros)
  • Step 4 and 5 are cancelled by step 8 (with 4 and 5 you add 250, at step 8 you subtract it again)
  • Step 6 and 7 and 9 : you add twice the last 4 digits and divide them by two meaning you add only once the last 4 digits.
So we have the first 3 digts followed b4 zeros with last 4 digits added, yes this should always be the same number

But as far as I can see this will only work with a 7 digit number

</Nerd Mode>
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Old 04-10-2007, 11:46 AM
icky's Avatar
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<Bash Nerd Mode - On>

Geek!

</Bash Nerd Mode>
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Old 04-10-2007, 12:36 PM
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This doesn't work with Australian phone numbers, probably because they have 8 numbers !!
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Old 04-10-2007, 01:49 PM
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oh well.... use ya english one~!!!!
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  #6  
Old 05-10-2007, 06:09 AM
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I am stunned at Virtual Dj's nerd mode.I wonder if he does taxes.
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Old 05-10-2007, 12:52 PM
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That was awesome! I didn't have a calculator, so I actually did it in my head, so yes, you can.

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Old 05-10-2007, 02:25 PM
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Quote:
Originally Posted by DJ Useo View Post
I am stunned at Virtual Dj's nerd mode.I wonder if he does taxes.
It's a gift.
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Old 05-10-2007, 10:00 PM
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Quote:
Originally Posted by Virtual DJ View Post
It's a gift.
you got fucking brains looool

honest ain't got a fucking clue what your going on about
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  #10  
Old 07-10-2007, 04:09 PM
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Why doesn't that surprise me?
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