You must also Add OR subtract from left to right as they appear in the problem
Hope this helps!
On 4/23/15, MathTeacher wrote: > Does order of operations work if you always divide before > multiplying and subtract before adding? > > I think it does
a/b*c done left to ri...See MoreOn 4/23/15, MathTeacher wrote: > Does order of operations work if you always divide before > multiplying and subtract before adding? > > I think it does
but I think you may be right. I like it.
a*b/c done left to right works out to ab/c
a*b/c done division first works out to ab/c
a/b*c done left to right works out to ac/b
a/b*c done division first works out to ac/b
I leave the subtraction case for dear Michelle, who should understand that someone who signs themselves as Math Teacher probably wasn't asking how the order of operations rules work, but was raising a deeper point.
It is a long time since I was surprised by something in what we would consider elementary math, but you have done it. Kudos.
I'm doing this quickly, so might have missed something - you can do the careful checking.
But I think the first common multiple is 105.
Therefore the bell would ring 105 minutes later, or at 4:45PM
n 4/11/15, Géral Dine wrote: > Could anybody help me with the following? > > Three bells toll at intervals of 3, 5 and 7 minutes. All the > bells toll at 3 PM. When will they toll tegether for the > second time? > > > > > >
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I think adding practical problems helps the students receive the information. Kids like games and money so I do alot with money problems giving them life like play money to work with.
There is a MoneyCamp program that helps studnets learn about money in a fun way. You can check it out at http://www.winmds.com/workshops
Hello! Our school has failed to make AYP in Math and we are looking for Math interventions.I was wondering what your school uses. I was also wondering if anyone was familiar with Trevor Calkins Power of Ten.
On 2/05/15,...See MoreWe use RenaissanceOnline, but they handed it to me (a brand new teacher without a full license yet) so I can't really say how well it's working. The paper-based version is universally despised by the 7- 10th graders use it with, but the online version has gone over alright with one class of high school students.
On 2/05/15, Chris wrote: > On 2/04/15, Math Teach wrote: >> >> We use Pinpoint Math here. Kind of like "SRA" but for >> math. >> >> >> 2/03/15, Christina wrote: >>> Hello! Our school has failed to make AYP in Math and we >>> are looking for Math interventions.I was wondering what >>> your school uses. I was also wondering if anyone was >>> familiar with Trevor Calkins Power of Ten. >>> >>> Thanks!
I'm glad you told us, we were wondering about that.