 | | From: | Pat | | Subject: | Re: Should 24 - 3 x 6 + 3 = 9 or = 3 ? | | Date: | Mon, 13 Dec 2004 16:17:39 +1100 |
|
|
 | NO
they are not done in that order.
Multiplication and division are done first, left to right with the same
priority, then addition and subtraction are done left to right with the same
priority.
ADDITION IS NOT DONE BEFORE SUBTRACTION...
"Alex" wrote in message
news:A5U2d.131$Cs.13296@nnrp1.ozemail.com.au...
> "Fermanis" wrote in message
> news:41493395$0$23895$afc38c87@news.optusnet.com.au...
> > The answer is 3
> > the teacher is correct as you multiply, divide, add, subtract in that
> > order.
> >
> > 24-3x6+3 = 24-18+3
> > = 24-21
> > = 3
> >
> > Before you all start to go on about the teachers then maybe you should
> > all go back to school
> >
> > Ugly wrote:
> >
> > > Maybe teachers should be checking and double checking their class
plans
> > > instead of having 12 weeks of holidays per year. Maybe they could do
> some
> > > overtime (like work until 5pm like the rest of the working community)
or
> use
> > > some of the 2 hours they have for lunches (when you add recess and
lunch
> > > together) during the day? Given all this free time, they still give
> shit
> > > answers like 3 when it is obvious it is 9. I can't even see the logic
> to
> > > get to 3. Maybe once they get things right, they will gain support
for
> a
> > > pay rise. Although I would like to work for $45,000 per year for a 6
> hour
> > > day that consists of a 2 hour lunch and 12 weeks of holiday and still
> lobby
> > > for a pay rise because I am being hard done by. Just sickening. I
> > > certainly hope this teacher gets fired.
> > >
> > >
> > > "The Raven" wrote in message
> > > news:4143103d$0$5478$afc38c87@news.optusnet.com.au...
> > >
> > >>"Phred" wrote in message
> > >>news:2qggcaFvhp6hU1@uni-berlin.de...
> > >>
> > >>>In article <44c9e357.0409100509.6304470a@posting.google.com>,
> > >>>williamwkli@optusnet.com.au (Bill Li) wrote:
> > >>>
> > >>>>Hello ALL,
> > >>>>
> > >>>>I am glad as 99% of people I asked today (including you all) said
the
> > >>>>answer is 9.
> > >>>>
> > >>>>Actually, as I was sure 9 is the correct answer so I encourage my
> > >>>>daughter to take it up with her teacher again. She did that this
> > >>>>morning and told me at first the teacher still insists the answer is
> 3;
> > >>>
> > >>>Christ almighty! Are you serious mate? Are kids really being taught
by
> > >>>total incompetents these days?
> > >>
> > >>It would appear so. Multiply, Divide, Add, Subtract. That basic
concept
> > >>came back from the depths of my memory easily.
> > >>
> > >>
> > >>> Jesus wept! Maybe there *is* an
> > >>>argument for smaller class sizes -- at least then there would be
fewer
> > >>>kids screwed up by idiot teachers on any given issue!
> > >>
> > >>Agree on class sizes but only when the teachers are competent.
> > >>
> > >>
> > >>
> > >>>>however, when some other students in the class said they asked
> > >>>>their family the same question and believe the answer should be 9.
> > >>>>
> > >>>>My daughter's teacher lost the confidence and said she will check it
> > >>>>again...
> > >>>
> > >>>I don't believe it! "Check it again"? What's to check? The
answer's
> > >>>effn obvious. It's not as though it's an opinion or something
> > >>>similarly subjective; it's just bloody arithmetic after all!
> > >>
> > >>3
> > >>
> > >>
> > >>>>No wonder why more and more parents take their kids to the coaching
> > >>>>lessons, you just can't trust the teacher anymore...
> > >>>>
> > >>>>Anyway, many thanks for all the feedbacks.
> > >>>>Best regards,
> > >>>>Bill
> > >>>
> > >>>Cheers, Phred.
> > >>>
> > >>>--
> > >>>ppnerkDELETE@THISyahoo.com.INVALID
> > >>
> > >>
> > >>
> > >>--
> > >>The Raven
> > >>http://www.80scartoons.co.uk/batfinkquote.mp3
> > >>** President of the ozemail.* and uunet.* NG's
> > >>** since August 15th 2000.>
> > >>
> > >
>
> People who are interested in mathematics don't usually become primary
school
> teachers. I became a high school teacher because I was interested in
> teaching mathematics. Perhaps I should have chosen primary school then I
> might not have been kicked out for man handling (or should that be person
> handling) one of the many dickheads that are forced to stay at school when
> they obviously have no interest.
>
> Primary school teachers usually know nothing of mathematics. My sister had
> to learn the rule BODMAS just to teach these kids. Some teachers use
BOMDAS
> or BIDMAS. Teachers use these rules without even understanding why they
are
> there.
>
> At first I could not see how anyone could have come up with the answer 3
in
> this case, but if you literally follow the rule BODMAS then one can see
how
> an ignorant person could perform the addition before the subtraction in
such
> a way that brackets are magically added. These people cannot see the
> difference between "adding to the total" and "adding to what preceded".
>
> We could blame lack of funding to public schools, but I think the real
> culprit is the lack of interest that most primary teachers have in
> mathematics. Many people become primary school teacher simply because they
> love kids or sometimes because they want to love kids.
>
>
|
|
| | From: | DRS | | Subject: | Re: Should 24 - 3 x 6 + 3 = 9 or = 3 ? | | Date: | Tue, 14 Dec 2004 00:03:52 +1100 |
|
|
| "Pat" wrote in message
news:41bd25f5@duster.adelaide.on.net
> NO
> they are not done in that order.
> Multiplication and division are done first, left to right with the
> same priority, then addition and subtraction are done left to right
> with the same priority.
> ADDITION IS NOT DONE BEFORE SUBTRACTION...
If you want to start telling people how it's done don't top-post.
--
A: Top-posters.
Q: What is the most annoying thing on Usenet?
|
|
| | From: | johnsuth at nospam.com.au | | Subject: | Re: Should 24 - 3 x 6 + 3 = 9 or = 3 ? | | Date: | Mon, 13 Dec 2004 09:00:20 GMT |
|
|
| In <41bd25f5@duster.adelaide.on.net>, "Pat" writes:
>NO
>they are not done in that order.
>Multiplication and division are done first, left to right with the same
>priority, then addition and subtraction are done left to right with the same
>priority.
>ADDITION IS NOT DONE BEFORE SUBTRACTION...
There is no need to yell.
Your contribution is of no more value than those of the others you have
quoted, because you have failed to reference an authoritative source
that we can check.
This is the real justification for chucking you out.
|
|
| | From: | Pat | | Subject: | Re: Should 24 - 3 x 6 + 3 = 9 or = 3 ? | | Date: | Mon, 13 Dec 2004 20:32:02 +1100 |
|
|
| You want a reference, try any primary school maths book.
wrote in message
news:c1.2c.2tqxYK$0H2@PC1.ACENET.COM.AU...
> In <41bd25f5@duster.adelaide.on.net>, "Pat"
writes:
> >NO
> >they are not done in that order.
> >Multiplication and division are done first, left to right with the same
> >priority, then addition and subtraction are done left to right with the
same
> >priority.
> >ADDITION IS NOT DONE BEFORE SUBTRACTION...
>
> There is no need to yell.
>
> Your contribution is of no more value than those of the others you have
> quoted, because you have failed to reference an authoritative source
> that we can check.
>
> This is the real justification for chucking you out.
>
>
>
|
|
| | From: | johnsuth at nospam.com.au | | Subject: | Re: Should 24 - 3 x 6 + 3 = 9 or = 3 ? | | Date: | Wed, 15 Dec 2004 11:20:21 GMT |
|
|
| In <41bd6193$1@duster.adelaide.on.net>, "Pat" writes:
>You want a reference, try any primary school maths book.
My observation is that school textbooks are about as accurate as
newspapers.
Surely there is a classic treatise on maths that would be found in a
State library?
|
|
| | From: | Pat | | Subject: | Re: Should 24 - 3 x 6 + 3 = 9 or = 3 ? | | Date: | Fri, 17 Dec 2004 13:42:56 +1100 |
|
|
| I have been teaching for many years and have never seen a text book give a
incorrect outline of the order of operations. I do agree that text books
regularly have equations that don't make sense or are incorrect.
wrote in message
news:c1.2c.2trX7b$0H3@PC1.ACENET.COM.AU...
> In <41bd6193$1@duster.adelaide.on.net>, "Pat"
writes:
> >You want a reference, try any primary school maths book.
>
>
> My observation is that school textbooks are about as accurate as
> newspapers.
>
> Surely there is a classic treatise on maths that would be found in a
> State library?
>
>
>
|
|
| | From: | DRS | | Subject: | Re: Should 24 - 3 x 6 + 3 = 9 or = 3 ? | | Date: | Fri, 17 Dec 2004 14:00:43 +1100 |
|
|
| "Pat" wrote in message
news:41c247b5@duster.adelaide.on.net
> I have been teaching for many years and have never seen a text book
> give a incorrect outline of the order of operations. I do agree that
> text books regularly have equations that don't make sense or are
> incorrect.
They must be written by top-posters.
--
A: Top-posters.
Q: What is the most annoying thing on Usenet?
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|
