math guru's wanted

[Gait_Keeper]

1) Key-in the first 3 digits of your home phone number (not the area code) into a calculator.
2) Multiply by 80
3) Add 1
4) Multiply by 250
5) Plus last four digit of phone number
6) Plus last four digit of phone number again
7) Minus 250
8) Divide by 2
Is it your phone number ????????????

what is the tech behind this and others like it???

you know, pick a number add something , divide something , minus something and get your number

[tgxiii]

I've always been amazed by these things.

[Mike]

haha neat. I usually get a lot of things like this from friends, via e-mail.

[Dax_Brandy]

hmmm... nice. some are like your age, birth date, etc.

[JayMan]

Ok, do ya want me to try to explain this?

I understand how it works, but explaining it could be tricky...

I'll see how i go... & then post it.

JayMan

[Uncle Bob]

Strange how that works.

[JayMan]

Ok... this is probably really confusing... but its the best i can do for now....

I've written that up in a spreadsheet, so if anyone wants me to plug in some different figures to see how that effects it (in the original & my simplified versions) let me know.

JayMan

[muno]

Good work jayman, the above explanation is perfectly understandable, even for me who doesn't speak english and knows jack about math

[Kruzin]

Good job, JM.
In my mind, it was simple, but to put it into a simple spreadsheet for explanation was much tougher.
All of these math tricks posted all over the net can be explained by similar means...

[Gait_Keeper]

Jayman you Da Man!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Thanx

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