2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2 x 0?

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  • 2+2+2+2+2+2+2+2+2+2+2+2+2+2-2+2 x 0?
  • Elfinsafety
    Member

    What a packet of nonsense. You could just as easily say it’s 24:

    (2+2+2+2+2+2+2+2+2+2+2+2)+((2+2)x0))

    Or any other number of combinations.

    There’s no brackets in the original sum. Therefore it is zero, if it is to be interpreted as it is writed. You can’t just add brackets in to try to look clever you know.

    Premier Icon scaredypants
    Subscriber

    flap_jack – Member
    scardypants – your 11 yr old is right (in octal)

    Gawd, you must win a prize for that flap_jack ๐Ÿ˜ณ

    Premier Icon GrahamS
    Subscriber

    Yeah Elf, except there are set rules, taught at GCSE level maths, that define exactly how it should be read.

    And they say it is 26.

    You can’t just add brackets in to try to look clever you know.

    I didn’t – they are just to illustrate who to read it in the correct BODMAS/PEMDAS order.

    Elfinsafety
    Member

    Some of you lot wooduv bin beaten up on a daily basis if you’d gone my school.

    I hope you actually were. You deserved it.

    Premier Icon flap_jack
    Subscriber

    what, as saddest software eng on singletrack. A crowded field, I always thought..

    Elfinsafety
    Member

    I din’t see that minus sign. does not in any way change owt.

    Can’t just throw random brackets about to arrive at the number you want. It’s bollocks.

    jonba
    Member

    I’m amazed that there are no pedants who’ve decided to work out the error and quote the answer +/-

    Premier Icon GrahamS
    Subscriber

    Elf: what is 2 + 3 x 5 – 4?

    Premier Icon Cougar
    Subscriber

    I din’t see that minus sign. does not in any way change owt.

    Can’t just throw random brackets about to arrive at the number you want. It’s bollocks.

    Just because you don’t understand it doesn’t mean it’s wrong.

    Some of you lot wooduv bin beaten up on a daily basis if you’d gone my school.

    I hope you actually were. You deserved it.

    I was. Thanks.

    Elfinsafety
    Member

    Just because you don’t understand it doesn’t mean it’s wrong.

    Yes it does.

    I was. Thanks.

    Good.

    One question here which interests me is how people would answer the question if it were read out to them verbally. Is BODMAS (I don’t think we had parentheses in my youth) a strictly written convention?

    Premier Icon GrahamS
    Subscriber

    > Just because you don’t understand it doesn’t mean it’s wrong.
    Yes it does.

    I thought only TJ was infallible ๐Ÿ˜€

    Elfinsafety
    Member

    Elf: what is 2 + 3 x 5 – 4?

    5

    17

    21

    Take yer pick.

    IanMunro
    Member

    Elf earlier ๐Ÿ˜€
    [video]http://www.youtube.com/watch?v=K71MckOTt1M[/video]

    Premier Icon Flaperon
    Subscriber

    Elfinsafety – you unwittingly (though funnily enough that’s a very appropriate word to describe you) have managed to hit the nail on the head when it comes to the dismal state of this country’s more advanced scientific and engineering professions.

    ome of you lot wooduv bin beaten up on a daily basis if you’d gone my school. I hope you actually were. You deserved it.

    This is not difficult stuff. I learned it in primary school, and frankly it beggars belief that you don’t know it. More so when you consider your response when someone quite reasonably points out that you’re understanding is wrong.

    Being unable to do basic maths is not something to be proud of, yet it’s all too common in the UK. “Oooh, don’t make it add it up; I don’t do maths, me.” You wouldn’t say, “Don’t ask me to do that, I can’t read” so why is this any difference.

    YOU (and your ilk) are the reason engineering is seen as derogatory these days, and are probably responsible at a base level for the fact that we are never going to leave recession without a paradigm shift in the industrial output of this country.

    Premier Icon GrahamS
    Subscriber

    Interesting question Stoatsbrother.

    I would assume that the person reading it to me was reading it in the order they expected the operations to be performed, so this question could be correctly read as:

    Two times zero,
    plus two, plus two, plus two, plus two, plus two, plus two, plus two,
    plus two, plus two, plus two, plus two, plus two, plus two, plus two,
    minus two equals?

    Elfinsafety
    Member

    ๐Ÿ˜†

    Youse lot are just a bunch of nerds.

    (Gives GrahamS a Chinese Burn. Pulls plug out of BBC Micro after Graham’s spent several hours typing code into it and was just about to run it. Storms off.)

    don simon
    Member

    Surely you couldn’t do anything until the whole question was read, then apply the rules.

    allthepies
    Member

    some of you lot wooduv bin beaten up on a daily basis if you’d gone my school

    The independent school ? Hope the fees weren’t too high ๐Ÿ˜ฏ

    Elfinsafety
    Member

    YOU (and your ilk) are the reason engineering is seen as derogatory these days, and are probably responsible at a base level for the fact that we are never going to leave recession without a paradigm shift in the industrial output of this country.

    ๐Ÿ˜†

    No mate; it’s the Chinese churning stuff out for cheaper what will put paid to British Industry, not me.

    You’re quite angry about this, aren’t you?

    (Goes off to hang out with the cool kids, talk to girls and smoke cigs)

    Premier Icon GrahamS
    Subscriber

    (Gives GrahamS a Chinese Burn. Pulls plug out of BBC Micro after Graham’s spent several hours typing code into it and was just about to run it. Storms off.)

    Hah! Backed it up to my 5ยผ” floppy. Too slow thick kid.

    *ooow me arm*

    Premier Icon GrahamS
    Subscriber

    This child’s arithmetic question seems to be doing the rounds on Facebook at the moment as a poll.

    So far the results are:

    28: ย 44,870 votes
    26: 532,475 votes
    30: ย 60,095 votes
    ย 0: 800,597 votes

    Who says standards of mathematics are slipping eh? ๐Ÿ˜‰

    brakes
    Member

    the Bible that is Excel says 26
    .
    BUT at the end of the day, where is this useful outside of primary school maths?

    Ambrose
    Member

    Oh no- somebody said ‘paradigm shift’ we must make some facetime to touch base. Ciao

    Elfinsafety
    Member

    Just done it on my calculator and the answer is, unsurprisingly, zero.

    Tum tee tum tee tum…. ๐Ÿ™‚

    Hah! Backed it up to my 5ยผ” floppy

    ๐Ÿ˜ฏ

    Disgusting pervert. Always knew there was something wrong with your sort. No wonder the girls woon’t talk to youse….

    Premier Icon molgrips
    Subscriber

    Calculators don’t work the same way as paper maths should do, Elf.

    Elfinsafety
    Member

    What, you mean calculators actually work properly? ๐Ÿ˜€

    Youse lot carry on with yer silliness. I’ll trust the calculator.

    I woon’t trust youse lot to build me a house or something probbly fall down cos you’ve made stuff up rather than doing it properly. ๐Ÿ˜

    jon1973
    Member

    Just done it on my calculator and the answer is, unsurprisingly, zero.

    that’s not the answer I got

    Premier Icon glenh
    Subscriber

    I’m a physicist and I say the answer is ambiguous. Bodmas is just convention, nothing to do with mathematics.
    Engineers are just inflexible ๐Ÿ˜‰
    Proper notation would include parentheses.

    mattsccm
    Member

    By inserting brackets you change the meaning of the Q. There are none shown in the original therefore you do it one step at a time.
    Anything time zero is O

    mattsccm
    Member

    Bugger just found another answer who said the same thing.

    float
    Member

    ran it through matlab (mathematical computer program). its 26.

    Premier Icon GrahamS
    Subscriber

    > Elf: what is 2 + 3 x 5 – 4?
    5
    17
    21
    Take yer pick.

    What I like best about that response is they are all wrong.

    It’s 13.

    Premier Icon wwaswas
    Subscriber

    I think the space around the x in thread title misleads. Makes it look like the assign is one sum to be then
    Multiplied by the 0.

    nicko74
    Member

    I’ve reached the dizzy heights of 46 years old without ever knowing that pedmas thing.

    It’s probably for the best, as they put you on a register for it.

    Premier Icon Cougar
    Subscriber

    Just done it on my calculator and the answer is, unsurprisingly, zero.

    Non-scientific calculators will evaluate the sum as entered and get zero. Any scientific calculator will do it sensibly and give 26.

    Premier Icon sadmadalan
    Subscriber

    Of course you could write as

    14 * 2 – 2 + 2 * 0

    But I suspect that people would still want to do sequential sums rather than following the conventions

    of course the sum above could also be re-written as

    2 * 0 – 2 + 14 * 2

    to help those that are suffering!

    But I suspect that I am digressing!

Viewing 40 posts - 41 through 80 (of 483 total)

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