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Thread: What's 3x4?

  1. #1
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    What's 3x4?

    http://www.wimp.com/weakest/

    Watch b-real miss this one.

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    close to 2000 madbiker555's Avatar
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    "Nate-dogg, why are your hands in your pockets?"
    "So I won't steal nothin"

    They really were not ment to be on a gameshow.

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    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    You gotta watch the whole thing, it's hilarious..

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    close to 2000 madbiker555's Avatar
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    Quote Originally Posted by slvoid
    You gotta watch the whole thing, it's hilarious..
    It's still going..

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    Specialized Member ChAnMaN's Avatar
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    I dont even recignize these guys, except for nate dog and xibit.

    I missed the 20X16 question when i tried to think of it that quick. Probably a result of calculator dependence, i rarely do simple math in my head any more.
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    That darn Yankee TexasGuy's Avatar
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    that airs in the UK doesnt it? That episode is ****ing hilarious
    Life is about hanging onto what you think is important and finding out what really is important.
    "Stop Ruining my joke!", "No, a joke implies humor attached at no additional cost"
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  7. #7
    On my TARDIScycle! KingTermite's Avatar
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    That was hilarious....I did watch the whole thing. I was just annoyed that you get to the end and it didn't go through the whole thing. I was like "you brought me this far and then end?????"
    Quote Originally Posted by coffeecake View Post
    - it's pretty well established that Hitler was an *******.

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    That darn Yankee TexasGuy's Avatar
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    Quote Originally Posted by KingTermite
    That was hilarious....I did watch the whole thing. I was just annoyed that you get to the end and it didn't go through the whole thing. I was like "you brought me this far and then end?????"
    yeah
    Life is about hanging onto what you think is important and finding out what really is important.
    "Stop Ruining my joke!", "No, a joke implies humor attached at no additional cost"
    So many sayings, so little sig space.

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    Corsair Satyr's Avatar
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    Quote Originally Posted by ChAnMaN
    I dont even recignize these guys, except for nate dog and xibit.

    I missed the 20X16 question when i tried to think of it that quick. Probably a result of calculator dependence, i rarely do simple math in my head any more.
    One easy way to do multiplaction of large numbers is to break things into basic parts. Consider your example of 20*16.

    We then have 20*16=20*(10+6)=20*10 + 20*6=320=(10+10)*16=2*(10*16). You can break up the two numbers however you want, as long as you follow the distributive law.

    Consider a slightly more complicated example. 27*19. We can write 27*19=(20+7)*(10+9)=20*10+20*9+7*10+7*9=200+180+70+63=513.

    While that is a good heurestic example, it does not lend itself well to mental computation. What I personally would do when confronted with 27*19 is to think 27*10+(20*9+7*9). That involves less computation. Immediately you can see 27*10=270, and almost as fast recognize 9*20=180.

    As we hinted at in the first example, one can also apply the Fundamental Theorem of Arithmetic. For those who do not recall, this says that we can break any number into a product of a power of primes. So for any integer q, we have q=p1^a1*p2^a2...*pn^an, where pj is a prime and ai a natural number. (This is not to be confused with the fundamental theorem of algebra, which states that the field of complex numbers C is algebraically closed).

    Applying this theorem works well when we can factor out a small, single digit prime. For instance 14*21 reduces to the much more manageable (7*2)*21=7*(2*21)=7*42=7*40+7*2=280+14=294.

  10. #10
    That darn Yankee TexasGuy's Avatar
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    For instance 14*21
    heh
    10 * 21 = 210 and 4 * 21 is 42 + 42 or 84
    210 + 84 is 294
    Life is about hanging onto what you think is important and finding out what really is important.
    "Stop Ruining my joke!", "No, a joke implies humor attached at no additional cost"
    So many sayings, so little sig space.

  11. #11
    My Alphabit's say "Oooo" InfamousG's Avatar
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    I got the 16x20 right... but I broke it up differenty.. 10*(16*2)= 10*32=320

    I was sad when it didn't finish out, was hilarious.

    "So I dont steal nuthin'" was hilarious

  12. #12
    Specialized Member ChAnMaN's Avatar
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    ok, thanks for all the hints but i know how to do math.......i was just drawing a bit of a blank trying to think of that answer.
    You can never be too Specialized
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  13. #13
    My Alphabit's say "Oooo" InfamousG's Avatar
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    What I want to know is how to do fractions in your head. I mean, I have the basic ones memorized. I know 1/4 = 0.250, 1/2 = 0.500, 3/5 = 0.375, and several others that are basic measurements or common fractions.

    There is this guy in my statistics class that can do things like 12/19 (arbitrary) and take it out to 4 decimal places.

    I guess you could break it down to:
    12 > (19 / 2) th.f.: 12/19 > 0.500
    12/19 * 2/1 = 24 / 38
    24 / 38 = 19/38 + 5/38
    19/38 = .5 + 5/38

    But that is as far as I can get

  14. #14
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    Thats like asking someone with photographic memory how he memorizes things.
    I went to a specialized high school and met 2 people, one with chronological memory and the other with phonographical memory. You can ask the dude the order that the students walked out of class in on november 9th 1994 and he can tell you. And this chick knew the lyrics to every song she ever heard just once and could repeat it back to you.

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