Math Trick

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Old 10-18-2009, 03:27 AM
  #1  
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Here is a math trick so unbelievable that it will stump you.

I tried it on 8 digit phone numbers and it always worked????????

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 four digits of your home telephone number (NOT the area code)
3. Multiply by 80
4. Add 1
5. Multiply by 250
6. Add the last 4 digits of your telephone number
7. Add the last 4 digits of your telephone number again
8. Subtract 250
9. Divide number by 2

Do you recognise the answer?

:?:
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Old 10-18-2009, 07:44 AM
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I tried it and then read your post again...we have 7 digit numbers here in the US lol but it was my number with one of them repeated!!
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Old 10-18-2009, 09:12 AM
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Me too amma. Same thing. LOL
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Old 10-19-2009, 02:04 AM
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Works for Aussie land also. :lol: :lol:
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Old 10-19-2009, 06:13 PM
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Originally Posted by amma
I tried it and then read your post again...we have 7 digit numbers here in the US lol but it was my number with one of them repeated!!
Same here. Funny how numbers work.
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Old 10-19-2009, 09:19 PM
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It worked for me! I had hte extra digit b/c it's an American #, but that's awesome!
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Old 10-21-2009, 07:35 PM
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a repeat of one # otherwise right on. Think I'll show my math teacher next week.
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