View Full Version : todays math fun is brought to you by the letters W T and F
muchspl2
01-18-2005, 01:33 AM
1- take the first three numbers of your home phone number (not area code) and multiply by 80
2- add 1
3- multiply by 250
4- add the last four digits of your home number
5- add the last four digits of your home number, again
6- subtract 250
7- divide by 2
Spicker
01-18-2005, 01:37 AM
i lost me ti-83+ today... :(
cant do math now :(
muchspl2
01-18-2005, 01:40 AM
duh
C:\WINNT\system32\calc.exe
your on a computer, you have a calculator :rolleyes:
Spicker
01-18-2005, 01:48 AM
duh
C:\WINNT\system32\calc.exe
your on a computer, you have a calculator :rolleyes:
its to hard to use it...and im too lazy :wacko: :blushing:
muchspl2
01-18-2005, 01:51 AM
well if you do it correctly it will = your phone number.
Spicker
01-18-2005, 01:56 AM
well if you do it correctly it will = your phone number.
SERIOUS?????? :o
will try it out now...
EDIT: just tried it...its k00l but pointless :|
TheDave
01-18-2005, 02:04 AM
83262.5
muchspl2
01-18-2005, 02:04 AM
SERIOUS?????? :o
will try it out now...
EDIT: just tried it...its k00l but pointless :|
isn't everything
TheDave
01-18-2005, 02:06 AM
i missed half the instructions i think :blink:
meh
muchspl2
01-18-2005, 02:09 AM
it works all the time, its a math trick, if it didn't you screwed up the math :(
brotherdoobie
01-18-2005, 02:11 AM
Pretty cool...worked for me.
Peace bd
SingaBoiy
01-18-2005, 03:11 AM
What if you dont have a 7 digit phone#?
It worked for me too.
tesco
01-18-2005, 03:19 AM
wow kool
how does that work?
I want full explanation on my desk(top) by tommorrow at 8am. No extensions. :shifty:
colt45joe
01-18-2005, 03:21 AM
i lost me ti-83+ today... :(
cant do math now :(
i have a TI-89.
:p
manker
01-18-2005, 03:25 AM
What if you dont have a 7 digit phone#?
It worked for me too.It's easily adaptable. Not that difficult to work out :P
People in the UK have 6 digit phone numbers, instead of multiplying by 80 in the first step. Multiply by 8.
If you have an 8 digit number, multiply by 800.
Rip The Jacker
01-18-2005, 03:47 AM
Hey thats neat. It works. :D
TheDave
01-18-2005, 03:59 AM
its not working, i'm probably something though. i just noticed it say WTF in the title
vidcc
01-18-2005, 04:00 AM
Cool trick to help one remember ones phone number.... perhaps it should be put on the "tips" thread :unsure: :helpsmili
manker
01-18-2005, 04:04 AM
its not working, i'm probably something though. i just noticed it say WTF in the titleDid you multiply by 8 (http://filesharingtalk.com/vb3/showpost.php?p=976382&postcount=15) instead of 80?
muchspl2
01-18-2005, 06:58 AM
yea, its pretty fun :01:
TheDave
01-18-2005, 12:59 PM
Did you multiply by 8 (http://filesharingtalk.com/vb3/showpost.php?p=976382&postcount=15) instead of 80?
yep dont work
manker
01-18-2005, 01:04 PM
Do you have a six digit telephone number, if so you're a geptard.
Example 123456
123*8 = 984
984 + 1 = 985
985*250 = 246250
246250 + 456 = 246706
246706 = 345 = 247162
247162 - 250 = 246912
246912\2 = 123456
Samurai
01-18-2005, 01:05 PM
It's easily adaptable. Not that difficult to work out :P
People in the UK have 6 digit phone numbers, instead of multiplying by 80 in the first step. Multiply by 8.
If you have an 8 digit number, multiply by 800.
Do they now? I must work for teh government then cause I have 7 digits, minus the area code of course.
By the way, worked for me :01:
manker
01-18-2005, 01:12 PM
Do they now? I must work for teh government then cause I have 7 digits, minus the area code of course.
By the way, worked for me :01:Meh, you're from London. There are too many people there for any sense.
Also chavs breed quicker than proper people, London needs the extra 90 million phone numbers, just incase :unsure:
Jon L. Obscene
01-18-2005, 01:13 PM
well if you do it correctly it will = your phone number.
Nope, gave me a 0 too many :P
Jonno :cool:
manker
01-18-2005, 01:15 PM
It works for everyone!!!111 http://www.sighost.us/members/danb/bbq.gif
TheDave
01-18-2005, 01:17 PM
doesnt
TheDave
01-18-2005, 01:18 PM
oh it works if i press enter every step
manker
01-18-2005, 01:19 PM
Want me to prove it.
Edit: Geptard :P
muchspl2
01-18-2005, 01:21 PM
sure
manker
01-18-2005, 01:41 PM
sureOK. It can be proved by simplification.
The first step is multiplying by 8 (2X2X2); cancel out step 7 by removing one of the twos.
Step 5 is also cancelled because you've gotten rid of the divisor of two at the end so you must not add the last three digits a second time.
This means that step seven is gone, step 5 is gone and you're multiplying by 4 in the first instance.
We now have
1 Multiply first 3 digits by 4
2 Add 1
3 Multiply by 250
4 Add last three digits
5 Subtract 250
Still works, right?
Steps 2 and 5 cancel themselves out since adding one before multiplying by 250 has the effect of adding 250 to the figure.
We now have
1 Multiply first 3 numbers by 4
2 Multiply by 250
3 Add last 3 digits
Since 4*250= 1000 we may as well simplify further and get rid of step 2 by making step one the first 3 numbers*1000
Now we're left with
1 Multiply the first 3 numbers by 1000
2 Add last 3 digits.
The above is moving the 3 digit number 3 decimal places to the left and slotting in the last 3 digits.
=> It works for everyone.
Note: It's the same principle for 7 digit numbers, it just cancels down to multiplying by 10000 rather than 1000 in it's simplest form.
muchspl2
01-18-2005, 01:47 PM
gold star for showing your work, congratulations you screwed up the bell curve and will make every one else have lower grades.
Cheese
01-18-2005, 01:48 PM
I don't have a phone. :(
manker
01-18-2005, 01:55 PM
I don't have a phone. :(Don't be sad. It still works for you too. With zeros.
Thanks!!! :crying:
I finally know my number now............... :(
Is there a reverse process, where i forget it again??? :helpsmili
(>Zero Cool<)
01-18-2005, 06:05 PM
OK. It can be proved by simplification.
The first step is multiplying by 8 (2X2X2); cancel out step 7 by removing one of the twos.
Step 5 is also cancelled because you've gotten rid of the divisor of two at the end so you must not add the last three digits a second time.
This means that step seven is gone, step 5 is gone and you're multiplying by 4 in the first instance.
We now have
1 Multiply first 3 digits by 4
2 Add 1
3 Multiply by 250
4 Add last three digits
5 Subtract 250
Still works, right?
Steps 2 and 5 cancel themselves out since adding one before multiplying by 250 has the effect of adding 250 to the figure.
We now have
1 Multiply first 3 numbers by 4
2 Multiply by 250
3 Add last 3 digits
Since 4*250= 1000 we may as well simplify further and get rid of step 2 by making step one the first 3 numbers*1000
Now we're left with
1 Multiply the first 3 numbers by 1000
2 Add last 3 digits.
The above is moving the 3 digit number 3 decimal places to the left and slotting in the last 3 digits.
=> It works for everyone.
Note: It's the same principle for 7 digit numbers, it just cancels down to multiplying by 10000 rather than 1000 in it's simplest form.
:huh:
slow day at work was it manker? :rolleyes:
manker
01-18-2005, 06:25 PM
:huh:
slow day at work was it manker? :rolleyes:You mean that the world doesn't stop for everyone when a hawt logic problem presents itself! Unbelievable!
(>Zero Cool<)
01-18-2005, 06:33 PM
You mean that the world doesn't stop for everyone when a hawt logic problem presents itself! Unbelievable!
:lol: or :crying:
basically I don't know whether to laugh with you or cry for you on that one :ermm:
Gemby!
01-18-2005, 07:45 PM
21592 :01:
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