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CSUB
Bakersfield

Method & Theory

Re: Unbelievable Math Problem!
David

    On 8/20/05, Dale wrote:
    > 1.Grab a calculator..
    > 2.Key in the first three digits of your phone number.
    > (Not 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.
    > 10.Do you recognize the answer?
    >
    > Please let me know!
    >
    Looks the same as doubling your first three digits and moving
    them over four place values (what multiplying by "80*25"
    accomplishes i.e. x "20,000") to be able to insert the last
    four phone number digits (albeit doubled). Of course this is
    partly hidden by the "mysterious" increase of 250 (1 x 250),
    which is later removed, and finally removing the doubling
    factor.