Switch Theme:

Simple Maths 1+2*2=?  [RSS] Share on facebook Share on Twitter Submit to Reddit
»
Poll
1+2*2=?
5 85% [ 143 ]
6 15% [ 25 ]
Total Votes : 168
Author Message
Advert


Forum adverts like this one are shown to any user who is not logged in. Join us by filling out a tiny 3 field form and you will get your own, free, dakka user account which gives a good range of benefits to you:
  • No adverts like this in the forums anymore.
  • Times and dates in your local timezone.
  • Full tracking of what you have read so you can skip to your first unread post, easily see what has changed since you last logged in, and easily see what is new at a glance.
  • Email notifications for threads you want to watch closely.
  • Being a part of the oldest wargaming community on the net.
If you are already a member then feel free to login now.




Made in gb
Renegade Inquisitor de Marche






Elephant Graveyard

lord commissar klimino wrote:
purplefood wrote:
lord commissar klimino wrote:
Cheesecat wrote:
Avatar 720 wrote:
halonachos wrote:
Avatar 720 wrote:
halonachos wrote:
Doctadeth wrote:It's five, not six.

Regardless of maths formula *moving on* essentially, its that this works. I have always been taught, even in my advanced maths classes, that formula is done this way. Devision, Multiplication, then subtractions and finally additions. However, brackets also make a difference, but not in this!


PEMDAS

Parentheses, Brackets(if involved), Exponent, Multiplication, Division, Addition, Subtraction. Not Division and then multiplication.

Its usually remembered as "Please Excuse My Dear Aunt Sally" or "Please, Bob, Excuse My Dear Aunt Sally".


Divison and Multiplication are of equal precedence IIRC, so the order doesn't really matter.


No, the order matters, the order always matters! Its not PEMorDAorS or PEDMSA, its PEMDAS!


I'll see your PEMDAS and raise you both a BODMAS and a BIDMAS.


I was taught BEDMAS.


bed moss? thats unhealthy.

That's a shocking joke...
An affront to all and any humour that has ever existed... ever.

it wasnt THAT bad. you want to see bad? do you? DO YOU?

It wasn't that bad. It was much much worse...

Dakka Bingo! By Ouze
"You are the best at flying things"-Kanluwen
"Further proof that Purple is a fething brilliant super villain " -KingCracker
"Purp.. Im pretty sure I have a gun than can reach you...."-Nicorex
"That's not really an apocalypse. That's just Europe."-Grakmar
"almost as good as winning free cake at the tea drinking contest for an Englishman." -Reds8n
Seal up your lips and give no words but mum.
Equip, Reload. Do violence.
Watch for Gerry. 
   
Made in us
Fixture of Dakka






On a boat, Trying not to die.

purplefood wrote:
lord commissar klimino wrote:
purplefood wrote:
lord commissar klimino wrote:
Cheesecat wrote:
Avatar 720 wrote:
halonachos wrote:
Avatar 720 wrote:
halonachos wrote:
Doctadeth wrote:It's five, not six.

Regardless of maths formula *moving on* essentially, its that this works. I have always been taught, even in my advanced maths classes, that formula is done this way. Devision, Multiplication, then subtractions and finally additions. However, brackets also make a difference, but not in this!


PEMDAS

Parentheses, Brackets(if involved), Exponent, Multiplication, Division, Addition, Subtraction. Not Division and then multiplication.

Its usually remembered as "Please Excuse My Dear Aunt Sally" or "Please, Bob, Excuse My Dear Aunt Sally".


Divison and Multiplication are of equal precedence IIRC, so the order doesn't really matter.


No, the order matters, the order always matters! Its not PEMorDAorS or PEDMSA, its PEMDAS!


I'll see your PEMDAS and raise you both a BODMAS and a BIDMAS.


I was taught BEDMAS.


bed moss? thats unhealthy.

That's a shocking joke...
An affront to all and any humour that has ever existed... ever.

it wasnt THAT bad. you want to see bad? do you? DO YOU?

It wasn't that bad. It was much much worse...

The quote triangle grows... Muahaha....

Also, sweetie, you told a worse joke. Last time you said it, I the Fredricksons left.

This message was edited 1 time. Last update was at 2011/09/17 23:39:27


Every Normal Man Must Be Tempted At Times To Spit On His Hands, Hoist That Black Flag, And Begin Slitting Throats. 
   
Made in gb
Renegade Inquisitor de Marche






Elephant Graveyard

Chowderhead wrote:
purplefood wrote:
lord commissar klimino wrote:
purplefood wrote:
lord commissar klimino wrote:
Cheesecat wrote:
Avatar 720 wrote:
halonachos wrote:
Avatar 720 wrote:
halonachos wrote:
Doctadeth wrote:It's five, not six.

Regardless of maths formula *moving on* essentially, its that this works. I have always been taught, even in my advanced maths classes, that formula is done this way. Devision, Multiplication, then subtractions and finally additions. However, brackets also make a difference, but not in this!


PEMDAS

Parentheses, Brackets(if involved), Exponent, Multiplication, Division, Addition, Subtraction. Not Division and then multiplication.

Its usually remembered as "Please Excuse My Dear Aunt Sally" or "Please, Bob, Excuse My Dear Aunt Sally".


Divison and Multiplication are of equal precedence IIRC, so the order doesn't really matter.


No, the order matters, the order always matters! Its not PEMorDAorS or PEDMSA, its PEMDAS!


I'll see your PEMDAS and raise you both a BODMAS and a BIDMAS.


I was taught BEDMAS.


bed moss? thats unhealthy.

That's a shocking joke...
An affront to all and any humour that has ever existed... ever.

it wasnt THAT bad. you want to see bad? do you? DO YOU?

It wasn't that bad. It was much much worse...

The quote triangle grows... Muahaha....

Also, sweetie, you told a worse joke. Last time you said it, I the Fredricksons left.

Sorry honey but the Fredricksons are irksome. They practically sucked the humour out of the room.

Dakka Bingo! By Ouze
"You are the best at flying things"-Kanluwen
"Further proof that Purple is a fething brilliant super villain " -KingCracker
"Purp.. Im pretty sure I have a gun than can reach you...."-Nicorex
"That's not really an apocalypse. That's just Europe."-Grakmar
"almost as good as winning free cake at the tea drinking contest for an Englishman." -Reds8n
Seal up your lips and give no words but mum.
Equip, Reload. Do violence.
Watch for Gerry. 
   
Made in ca
Fixture of Dakka




Kamloops, BC

Edited.

This message was edited 1 time. Last update was at 2011/09/17 23:44:41


 
   
Made in ie
Norn Queen






Dublin, Ireland

....f*k OFF rATTYU

This message was edited 1 time. Last update was at 2011/09/18 00:42:50


Dman137 wrote:
goobs is all you guys will ever be

By 1-irt: Still as long as Hissy keeps showing up this is one of the most entertaining threads ever.

"Feelin' goods, good enough". 
   
Made in us
Decrepit Dakkanaut






New Orleans, LA

Chibi Bodge-Battle wrote:P must be for Parentheses (ie brackets)
E (after a google) must be for Exponentiation (ie Indices)

The act of raising a number to a power


Exactly.

Parentheses
Exponents
Multiplication
Divide
Add
Subtract

We used the pneumonic device "Please Excuse My Dear Aunt Sally" and it's stuck with me since elementary school.

DA:70S+G+M+B++I++Pw40k08+D++A++/fWD-R+T(M)DM+
 
   
Made in gb
Renegade Inquisitor de Marche






Elephant Graveyard

kronk wrote:
Chibi Bodge-Battle wrote:P must be for Parentheses (ie brackets)
E (after a google) must be for Exponentiation (ie Indices)

The act of raising a number to a power


Exactly.

Parentheses
Exponents
Multiplication
Divide
Add
Subtract

We used the pneumonic device "Please Excuse My Dear Aunt Sally" and it's stuck with me since elementary school.

Isn't it mnemonic?

Dakka Bingo! By Ouze
"You are the best at flying things"-Kanluwen
"Further proof that Purple is a fething brilliant super villain " -KingCracker
"Purp.. Im pretty sure I have a gun than can reach you...."-Nicorex
"That's not really an apocalypse. That's just Europe."-Grakmar
"almost as good as winning free cake at the tea drinking contest for an Englishman." -Reds8n
Seal up your lips and give no words but mum.
Equip, Reload. Do violence.
Watch for Gerry. 
   
Made in us
Wraith






It's actually pneumatic. They use a piston to pierce the student's skull to imprint "PEMDAS" directly upon the brain.
   
Made in gb
Renegade Inquisitor de Marche






Elephant Graveyard

Makes sense...
Especially considering 18 people don't seem to have a basic grasp on mathematics...

Dakka Bingo! By Ouze
"You are the best at flying things"-Kanluwen
"Further proof that Purple is a fething brilliant super villain " -KingCracker
"Purp.. Im pretty sure I have a gun than can reach you...."-Nicorex
"That's not really an apocalypse. That's just Europe."-Grakmar
"almost as good as winning free cake at the tea drinking contest for an Englishman." -Reds8n
Seal up your lips and give no words but mum.
Equip, Reload. Do violence.
Watch for Gerry. 
   
Made in us
Decrepit Dakkanaut






New Orleans, LA

purplefood wrote:
Isn't it mnemonic?


Maybe. Dunno.

DA:70S+G+M+B++I++Pw40k08+D++A++/fWD-R+T(M)DM+
 
   
Made in us
[DCM]
.







Good lord - don't quote the living hell out of stuff - please!
   
Made in us
Warplord Titan Princeps of Tzeentch





RatBot wrote:It's actually pneumatic. They use a piston to pierce the student's skull to imprint "PEMDAS" directly upon the brain.


Back in my day we had hydraulic pistons. Damn kids don't know how easy they have it...

text removed by Moderation team. 
   
Made in us
Phanobi




oh,you know. in a basement...cooking ponies into cupcakes....

stop quoting stuff i dont know!

Deathshead420 wrote:As your leader, I encourage you, from time to time and always in a respectful manner, to question my logic. If you're unconvinced a particular plan of action I've decided is the wisest, tell me so! But allow me to convince you. And I promise you, right here and now, no subject will ever be taboo … except, of course, the subject that was just under discussion. The price you pay for bringing up either my Chinese or American heritage as a negative is – I collect your f g head. [Holds up Tanaka's head] Just like this f r here. Now, if any of you sons of bitches got anything else to say, now's the f g time! [Pause] I didn't think so.
 
   
Made in ca
Pulsating Possessed Chaos Marine





Did you guys know Canada has a friggin desert?

Embarrassingly, I put 6....then I remembered bedmas >_> So I say that mine should be 5 dammit!


But really, why the hell does the X have to be first?

You're not playing the game like I play it...why aren't you playing the game like I play it?! O_O 
   
Made in us
Automated Rubric Marine of Tzeentch






5.

Seriously.

Please Excuse My Aunt Sally
   
Made in us
Consigned to the Grim Darkness





USA

This kind of thing is easy for many people to forget if they're not using math regularly. I know I use math every day thanks to my science courses (and minecraft + dwarf fortress...), myself...

The people in the past who convinced themselves to do unspeakable things were no less human than you or I. They made their decisions; the only thing that prevents history from repeating itself is making different ones.
-- Adam Serwer
My blog
 
   
Made in ca
Mounted Kroot Tracker





Ontario, Canada

I remember always being confused with the whole BEDMAS thing as a kid - especially when they told us that the division and multiplication could be switched, as well as the addition and subtraction. It wasn't until late in high school that I figured our why.

Is it possible that the OP is incorrect? The teachers could be saying, do the multiplication/division from left to right, or do the addition/subtraction from left to right. I was told something to that effect when I questioned the system. The reason? No reason, it just shuts the kid up, and won't make a difference.

Interesting to see the acronyms that different cultures / generations come up with - PEMDAS, BEDMAS, BIDMAS, BOMDAS, etc. I imagine it's geographical area, though, not really the decade. Perhaps the parentheses / brackets, what with computers becoming much more common in the last few decades. Programming (at least currently) depends heavily on the use of brackets, and it's less of a mouthful than parentheseseses.

This message was edited 2 times. Last update was at 2011/09/18 04:01:25


Night Watch SM
Kroot Mercenaries W 2 - D 3 - L 1
Manchu wrote: This is simply a self-fulfilling prophecy. Everyone says, "it won't change so why should I bother to try?" and then it doesn't change so people feel validated in their bad behavior.

Nightwatch's Kroot Blog

DQ:90-S++G++M-B++I+Pw40k08#+D+A--/cWD-R+T(S)DM+
 
   
Made in us
Consigned to the Grim Darkness





USA

Here, you use parentheses for the first level, then brackets for the second level.

For example, in solving functions:

A function of f(x)=7+u in an equation of (X+17)^2+2x+10=0 would basically result in an equation of: ([7+u]+17)^2+2(7+u)+10=0.

notice the position of the brackets in comparison to the parentheses.

lol, and this is the simple stuff. Yay math!

This message was edited 1 time. Last update was at 2011/09/18 04:05:32


The people in the past who convinced themselves to do unspeakable things were no less human than you or I. They made their decisions; the only thing that prevents history from repeating itself is making different ones.
-- Adam Serwer
My blog
 
   
Made in us
Phanobi




oh,you know. in a basement...cooking ponies into cupcakes....

Melissia wrote:This kind of thing is easy for many people to forget if they're not using math regularly. I know I use math every day thanks to my science courses (and minecraft + dwarf fortress...), myself...


those are fun as hell!

Deathshead420 wrote:As your leader, I encourage you, from time to time and always in a respectful manner, to question my logic. If you're unconvinced a particular plan of action I've decided is the wisest, tell me so! But allow me to convince you. And I promise you, right here and now, no subject will ever be taboo … except, of course, the subject that was just under discussion. The price you pay for bringing up either my Chinese or American heritage as a negative is – I collect your f g head. [Holds up Tanaka's head] Just like this f r here. Now, if any of you sons of bitches got anything else to say, now's the f g time! [Pause] I didn't think so.
 
   
Made in ca
Mounted Kroot Tracker





Ontario, Canada

Melissia wrote:Here, you use parentheses for the first level, then brackets for the second level.

For example, in solving functions:

A function of f(x)=7+u in an equation of (X+17)^2+2x+10=0 would basically result in an equation of: ([7+u]+17)^2+2(7+u)+10=0.

notice the position of the brackets in comparison to the parentheses.

lol, and this is the simple stuff. Yay math!


To be honest, we mostly call them brackets, even the parentheses. Perhaps they thought it was too much for us to wrap our tiny minds around. Obviously, brackets within brackets are done before brackets containing brackets. ({[Inception!]})

Night Watch SM
Kroot Mercenaries W 2 - D 3 - L 1
Manchu wrote: This is simply a self-fulfilling prophecy. Everyone says, "it won't change so why should I bother to try?" and then it doesn't change so people feel validated in their bad behavior.

Nightwatch's Kroot Blog

DQ:90-S++G++M-B++I+Pw40k08#+D+A--/cWD-R+T(S)DM+
 
   
Made in us
Consigned to the Grim Darkness





USA

Depending on what kind of math you're doing, definite brackets (the {} brackets, IE, curly brackets) have different uses. Mostly I see it used to enclose and define sets.

The people in the past who convinced themselves to do unspeakable things were no less human than you or I. They made their decisions; the only thing that prevents history from repeating itself is making different ones.
-- Adam Serwer
My blog
 
   
Made in us
Nasty Nob on Warbike with Klaw






It's five. Order of operations.

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

Please Excuse My Dear Aunt Sally

Read my story at:

http://www.dakkadakka.com/dakkaforum/posts/list/0/515293.page#5420356



 
   
Made in fk
Longtime Dakkanaut





Wishing I was back at the South Atlantic, closer to ice than the sun

I'm begining to wonder if this is an example of "lies to kids".

That is, if they are being taught left to right to get them used to sequential calculations, get them happy and them hit them with the horrors that is BEDMAS!

Many thanks for the responses though!

Andrew

I don't care what the flag says, I'm SCOTTISH!!!

Best definition of the word Battleship?
Mr Nobody wrote:
Does a canoe with a machine gun count?
 
   
Made in us
Lone Wolf Sentinel Pilot





In Revelation Space



Kudos to anyone who gets this reference.



http://www.spacex.com/company.php
http://www.penny4nasa.org/ SUPPORT MORE FUNDING FOR NASA

May the the blessings of His Grace the Emperor tumble down upon you like a golden fog. (Only a VERY select few will get this reference. And it's not from 40k. )





 
   
Made in fk
Longtime Dakkanaut





Wishing I was back at the South Atlantic, closer to ice than the sun

Accountancy joke!

I don't care what the flag says, I'm SCOTTISH!!!

Best definition of the word Battleship?
Mr Nobody wrote:
Does a canoe with a machine gun count?
 
   
Made in br
Horrific Howling Banshee





Heh, there is a reason I never made it to college.

This message was edited 1 time. Last update was at 2014/06/17 01:33:06


 
   
Made in us
Veteran ORC







GalacticDefender wrote:

Kudos to anyone who gets this reference.


Reminds me of the episode of Fairly Odd Parents, where Crocker and Steven Hawking are going back and forth proving that 2+2=5 and 2+2=6....

I've never feared Death or Dying. I've only feared never Trying. 
   
Made in gb
Longtime Dakkanaut





Wait a minute, what the feth is this sh*t about Triceratops? What moron of a palaeontologist thought this up? Having seen both compared, there's nearly no evidence, and seems to be mostly conjecture. It's untrue unless the Triceratops suddenly adopts the proportional growth rate of a small rodent.
   
Made in au
The Dread Evil Lord Varlak





I said five, because I was taught BIMDAS, and to the best of my knowledge that's still what is being followed.

I don't really get the level of superiority in this thread though, from people who think BIMDAS or any other acronym like that is the way maths must be. If maths was taught left to right it wouldn't suddenly get dumber or less capable of describing anything. It'd still be maths, it's just the form of notation would change.


GalacticDefender wrote:

Kudos to anyone who gets this reference.


It's from 1984.

Or, possibly a Radiohead song. Though in that case it's more "two and two always makes fiiiiiiiiiive".

This message was edited 1 time. Last update was at 2011/09/19 04:19:26


“We may observe that the government in a civilized country is much more expensive than in a barbarous one; and when we say that one government is more expensive than another, it is the same as if we said that that one country is farther advanced in improvement than another. To say that the government is expensive and the people not oppressed is to say that the people are rich.”

Adam Smith, who must have been some kind of leftie or something. 
   
Made in us
Fixture of Dakka




I blame the left for this.
   
 
Forum Index » Off-Topic Forum
Go to: