Math Trick

Joke ID#13319
Funny (2.13)
Rating (0.73)
CategoryOther / Misc  
Submitted Bybmonkey
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Here 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. I wonder what it means...

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?

Comments on this Joke
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Posted by mydarklife Sep 14, 2006

pretty good

Comment score: -1  

Posted by DennysGirl Sep 14, 2006

Not really a joke. This belongs more on braingle than here on Wocka.

Comment score: -1  

Posted by samg Sep 17, 2006

You're multiplying by 20,000 (80 x 250) adding in a 1 which gets multiplied by the 250, then adding the last 4 digits twice (and they're unaffected by the previous work since it ends with 4 zeros.) Then you take away the 250 you added earlier (that was just to keep you from seeing your phone number too early) and then you divide the 20,000 x your first 3 digits by 2 (leaving 10,000 times the 3 digits, which is the 3 digits followed by 4 zeros) and then dividing twice the last 4 digits of your number by 2. 7th grade.

Comment score: 1  

Posted by cheer492 Sep 18, 2006

woah that is cool

Comment score: 1  

Posted by reptile5000 Aug 14, 2007

I agree ... Not a joke at all.

Comment score: 0  

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