## Math: 6÷2(1+2) = ? | |

Anonymous Coward User ID: 30235756 Canada 01/14/2013 10:40 AM Report Abusive Post Report Copyright Violation | if you really must use PEMDAS its Quoting: (P) Do this first (E)Do this next (MD) Do these left to right (AS) Do these left to right so its 9 Anonymous Coward 30235756 Why don't you try eliminating parentheses first, as order of operations says you should Anonymous Coward 32057798 I did 6÷2*3= Now do left from right. If you really don't understand simple mathematics and have to depend on rules designed for little school kids who can't basic grasp concept please use BIDMAS instead of PEMDAS BIDMAS (brackets, indices, division, then multiplication, addition, subtraction) brackets 6/2(3) division 3(3) multiplication 9 |

Anonymous Coward User ID: 26118369 United States 01/14/2013 10:51 AM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 26118369 United States 01/14/2013 10:51 AM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 32057798 Canada 01/14/2013 10:52 AM Report Abusive Post Report Copyright Violation | I did Quoting: 6÷2*3= Now do left from right. If you really don't understand simple mathematics and have to depend on rules designed for little school kids who can't basic grasp concept please use BIDMAS instead of PEMDAS BIDMAS (brackets, indices, division, then multiplication, addition, subtraction) brackets 6/2(3) division 3(3) multiplication 9 Anonymous Coward 30235756 You sure did. Not writing them in your next step is not eliminating them. Student to teacher: "The math property I used in solving this equation was to just not write stuff from the previous step" Teacher: "Fail" |

Anonymous Coward User ID: 32057798 Canada 01/14/2013 10:56 AM Report Abusive Post Report Copyright Violation | Whatever is enclosed in parentheses must be simplified first, or if not, it must interact as a quantity with anything outside. Quoting: This means any operation on the quantity in parentheses must be applied to all of its parts. The most common and important example is called the distributive property. hoyletutoring.comAnyone who can read, please enlighten yourself with the above. Here is the link: [link to www.hoyletutoring.com] It is not just what is inside parentheses (which is what kids first learn)... As in the above: 6÷2(1+2) = 6 ÷ [2(2) + 2(1)] = 6 ÷ (4 + 2) = 1 |

Anonymous Coward User ID: 30235756 Canada 01/14/2013 11:11 AM Report Abusive Post Report Copyright Violation | Whatever is enclosed in parentheses must be simplified first, or if not, it must interact as a quantity with anything outside. Quoting: This means any operation on the quantity in parentheses must be applied to all of its parts. The most common and important example is called the distributive property. hoyletutoring.comAnyone who can read, please enlighten yourself with the above. Here is the link: [link to www.hoyletutoring.com] It is not just what is inside parentheses (which is what kids first learn)... As in the above: 6÷2(1+2) = 6 ÷ [2(2) + 2(1)] = 6 ÷ (4 + 2) = 1 Anonymous Coward 32057798 You point to a guy who has a BA in music to prove your point NICE [link to www.hoyletutoring.com] Anyway in Canada they now teach the BIDMAS Systems not PEDMAS to elementary school kids as the PEDMAS is flawed as per the above example The Answerr is 9 |

Anonymous Coward User ID: 32057798 Canada 01/14/2013 11:24 AM Report Abusive Post Report Copyright Violation | You point to a guy who has a BA in music to prove your point NICE [link to www.hoyletutoring.com] Quoting: Anyway in Canada they now teach the BIDMAS Systems not PEDMAS to elementary school kids as the PEDMAS is flawed as per the above example The Answerr is 9 Anonymous Coward 30235756 You get 9 because you know elementary school maths. I was never taught any mnemonic. I was taught order of operations, factoring, algebra, calculus, etc... How about these refs then?: "We use the distributive property to help us find a way around the order of operations while still being sure that we keep the value of the expression." [link to en.wikibooks.org] Distribute BEFORE "pedmas" AND use with numbers, possible used to REMOVE parentheses too. [link to www.algebra.com] Get Rid of parentheses with Distribution: [link to www.helpalgebra.com] If there is some factor multiplying the parentheses, then the only way to get rid of the parentheses is to multiply using the distributive law. [link to www.jamesbrennan.org] These guys got it right, they use "Parentheses" in the order of operations to require Distributive Property. Ref: Purplemath [link to www.purplemath.com] |

Anonymous Coward User ID: 20566260 United States 01/14/2013 11:48 AM Report Abusive Post Report Copyright Violation | You almost had it. After parenth you are supposed to move left to right. You solved 2*3 first, but instead you should have done 6/2 first. Then you would have been left with 3(3) which is 9. J&V no! you dont just leave (3) if youre left with (3) or any other number you are supposed to finish it! and then do left to right DPS There is nothing left to do with (3) You cant just make something up. |

cantlive4everUser ID: 29341887 United States 01/14/2013 11:55 AM Report Abusive Post Report Copyright Violation | The correct answer is 9. Multiplication and division take precedent over addition and subtraction. HOWEVER, multiplication and division are of equal precedence, as are addition and subtraction. To show the work it would be: Parenthesis first (1+2)=3 So now we have 6 divided by 2 times 3 Since division and multiplication are of equal precidence work left to right: 6 divided by 2=3 Now we are left with 3*3=9. The confusion seems to be with how we are taught at a very young age. We are all taught things like PEMDAS, BEDMAS or BIDMAS and we forget that multiplication and division are equal as are subtraction and addition. Remember, I made these predictions before I correlated them to the Mayan long count or studied the prophecies of the cleansing. |

DUCM900User ID: 32174052 Italy 01/14/2013 11:56 AM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 30235756 Canada 01/14/2013 03:18 PM Report Abusive Post Report Copyright Violation | |

DUCM900User ID: 32195573 Italy 01/14/2013 03:48 PM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 31519086 Australia 01/14/2013 05:16 PM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 20566260 United States 01/14/2013 05:20 PM Report Abusive Post Report Copyright Violation | no! Quoting: you dont just leave (3) if youre left with (3) or any other number you are supposed to finish it! and then do left to right DPS There is nothing left to do with (3) J&V Sure there is. (3) is equivalent to 3 is it not? So you can eliminate the parentheses, and change (3) to 3. Anonymous Coward 31519086 Exactly!!! So 3(3) = 9! |

Anonymous Coward User ID: 32057798 Canada 01/14/2013 06:01 PM Report Abusive Post Report Copyright Violation | |

DUCM900User ID: 32195573 Italy 01/14/2013 06:04 PM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 30235756 Canada 01/14/2013 06:18 PM Report Abusive Post Report Copyright Violation | Did no one read the references? The 9's start ignoring references, yet keep pleading 9, with nothing to back it up... Quoting: Anonymous Coward 32057798 [link to answers.yahoo.com] Multiple people with PHD's in Mathematics say 9. I get your music teach said 1 but hey I pay my kids music teacher $20 an hour and the folks with the PHD in math get $200 an hour Just saying oh and the answer is 9 |

DUCM900User ID: 32195573 Italy 01/14/2013 06:19 PM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 32057798 Canada 01/14/2013 06:29 PM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 32057798 Canada 01/14/2013 06:31 PM Report Abusive Post Report Copyright Violation | Multiple people with PHD's in Mathematics say 9. I get your music teach said 1 but hey I pay my kids music teacher $20 an hour and the folks with the PHD in math get $200 an hour Quoting: Just saying oh and the answer is 9 Anonymous Coward 30235756 Which people? Do they ALL say 9 ? No one with a PhD say it is 1? I have math book references that are written by 2 guys with PhDs in mathematics, and they say 1/2n = 1/(2n). In that case then, 6/2a where a = 2+1 = 1. |

Anonymous Coward User ID: 32057798 Canada 01/14/2013 06:32 PM Report Abusive Post Report Copyright Violation | |

sTTsTTTUser ID: 4852102 United States 01/14/2013 06:58 PM Report Abusive Post Report Copyright Violation | Back in the Stone Age, when all we had to cypher were fingers, toes, twigs & pebbles (too young for rocks & sticks), the Cave Elder sketched it out thus: |||||| === | || . | || and |||||| / | || . | || Never did teach us any of the magic words Pedmas, Bidmas, Ladymas... Although there was a fireside story about a Chief SoCaToA or some such... Apocalypse: All shall be revealed. And all shall be revealed. ******* All Human Beings are Human. Not all Humans are Human Beings. ******* |

Anonymous Coward User ID: 30235756 Canada 01/14/2013 07:04 PM Report Abusive Post Report Copyright Violation | The brackets were removed when you solved the equation in parentheses so it was 6÷2*3 but you have to now solve left to right And PEMDAS IS WRONG and algebra and distributive property are not relavent here because we are not doing algebra OK so lets do it your way 6÷2(1+2)= ? is not the same as 6 ----- (2+4) You are confusing fractions with division |

Anonymous Coward User ID: 24090746 United States 01/14/2013 07:10 PM Report Abusive Post Report Copyright Violation | |

Here_For_DonutsUser ID: 24797199 United States 01/14/2013 07:21 PM Report Abusive Post Report Copyright Violation | Alright, there's a lot of self-proclaimed experts around these parts. Let's see how your logic holds up against some basic mathematics. Quoting: 6÷2(1+2) = ? I'll give two hints. This is NOT a trick question, and there is only 1 correct answer. All tools used for computation are fair game. (Yes, I saw this somewhere else and decided to post it here.) Best of luck to all you geniuses . Syrius 6÷2(1+2) = n 6÷2(3) = n 6÷6 = n 1 = n Where is my cookie, damn it? Am I a guy, or am I a lesbian with a penis? |

Anonymous Coward User ID: 21416459 United States 01/14/2013 07:23 PM Report Abusive Post Report Copyright Violation | |

Anonymous Coward User ID: 32057798 Canada 01/14/2013 07:24 PM Report Abusive Post Report Copyright Violation | and algebra and distributive property are not relavent here because we are not doing algebra Quoting: Anonymous Coward 30235756 That is so fucking wrong it is frustrating. Certain math rules apply to numbers, and some to variables, but not both !??! LOLOLOLOLOLOLOLOL!!! You have just been banished from this thread !! |

Anonymous Coward User ID: 31519086 Australia 01/14/2013 07:27 PM Report Abusive Post Report Copyright Violation | That isn't the question though. I bet excel won't even accept 6÷2(1+2) Do you know why? Because no one taught excel how to use the distributive property. Anonymous Coward 32057798 how about this? [link to www.wolframalpha.com] [link to www.wolframalpha.com] |

Anonymous Coward User ID: 31519086 Australia 01/14/2013 07:29 PM Report Abusive Post Report Copyright Violation | That isn't the question though. I bet excel won't even accept 6÷2(1+2) Do you know why? Because no one taught excel how to use the distributive property. Anonymous Coward 32057798 how about this? [link to www.wolframalpha.com] [link to www.wolframalpha.com] Anonymous Coward 31519086 the plus signs got mangled up somehow, so change in the orange box where it says "(1 2)" to "(1 + 2)". |

Anonymous Coward User ID: 32221112 Canada 01/14/2013 07:34 PM Report Abusive Post Report Copyright Violation | |