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Saw this Math Problem on Facebook this Morning

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(@kris-morgan)
Posts: 3876
Topic starter
 

6-1*0+2/2 = ?

So, I get the right answer in like, 10 seconds after my brain and the clutch get in gear. I write it on a post it and take it to my field guys and their chief who is an SIT, sitting in October for the RPLS, and has a FREAKING college degree.

None of them got it until I showed it to them.

Have fun with this and your field guys also. This should be requisite to sit for the SIT.

 
Posted : August 24, 2012 4:17 am
(@holy-cow)
Posts: 25292
 

I need some parentheses. I can remember all sorts of stuff except the hierarchy of symbols.

I might be able to tell you your mother's maiden name or the month in which you were born, but, not what you need to know to do that simple problem correctly.

Could be 5 or 6 or 7 or pi for all I know.

 
Posted : August 24, 2012 4:28 am
(@joe-nathan)
Posts: 399
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Once again I fall back on my geology/geophysic educations:

What do you want it to be?

 
Posted : August 24, 2012 4:31 am
(@james-fleming)
Posts: 5687
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BODMAS

B: Brackets first
O: Orders (Powers and Square Roots)
DM: Division and Multiplication (left-to-right)
AS: Addition and Subtraction (left-to-right)

A college degree won't help with math that was supposed to be taught in seventh grade 🙁

 
Posted : August 24, 2012 4:31 am
(@shawn-billings)
Posts: 2689
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I get [tex]sqrt(50-1)[/tex]

 
Posted : August 24, 2012 4:32 am
(@dan-patterson)
Posts: 1272
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I get the old called for stone is off by 0.03'.....am I right?

 
Posted : August 24, 2012 4:36 am
(@james-fleming)
Posts: 5687
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> I get [tex]sqrt(50-1)[/tex]

I got the only Mersenne safe prime number

 
Posted : August 24, 2012 4:40 am
(@ashton)
Posts: 562
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The use of a * rather than a × indicate this is to be input to a computer (in some computer language) or a calculator. The result will depend on the computer language or calculator chosen. In the case of the TI-83 Plus the expression results in a syntax error.

 
Posted : August 24, 2012 4:45 am
 RFB
(@rfb)
Posts: 1504
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Five.

 
Posted : August 24, 2012 5:19 am
(@stephen-johnson)
Posts: 2342
 

I get 7.

1*0=0
2/2=1
6-0+1=7

 
Posted : August 24, 2012 5:50 am
 Thad
(@thad)
Posts: 396
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:good:

 
Posted : August 24, 2012 6:04 am
 GB
(@gb)
Posts: 61
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6-1*0+2/2 = ?
6-(1*0)+2/2 = X
(6-0+2)2= X
8/2 = 4

 
Posted : August 24, 2012 6:14 am
(@brian-allen)
Posts: 1570
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> 6-1*0+2/2 = ?
> 6-(1*0)+2/2 = X
> (6-0+2)2= X
> 8/2 = 4

Should be?
6-1*0+2/2 = x
6-(1*0)+(2/2) = x
6-0+1=7

 
Posted : August 24, 2012 6:20 am
(@kris-morgan)
Posts: 3876
Topic starter
 

:good:

 
Posted : August 24, 2012 6:22 am
(@kris-morgan)
Posts: 3876
Topic starter
 

So, enough have kicked in now.

I remember it this way
Please Excuse My Dear Aunt Sally (from 8th grade or so) where P = Parentheses, E = Exponents, M = Multiplication, D = Division, A = Addition and S = Subtraction.

It's silly, but it works.

 
Posted : August 24, 2012 6:23 am
(@brian-allen)
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The use of * is preferable over x when writing algabraeic expressions to avoid confusion of the x for multiplication and the x for a variable.

 
Posted : August 24, 2012 6:27 am
(@kris-morgan)
Posts: 3876
Topic starter
 

:good:

You're funny. 🙂

 
Posted : August 24, 2012 6:36 am
(@alockard)
Posts: 104
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> So, enough have kicked in now.
>
> I remember it this way
> Please Excuse My Dear Aunt Sally (from 8th grade or so) where P = Parentheses, E = Exponents, M = Multiplication, D = Division, A = Addition and S = Subtraction.
>
> It's silly, but it works.

That's how I learned in 8th or 9th grade. Good 'ol Aunt Sally. 🙂

..and I thought we were the only ones that got that corny acronym

 
Posted : August 24, 2012 6:45 am
(@doug-crawford)
Posts: 681
 

Punched it into six calculators, 3 TI's (-36x, -85, -92) & 3 HP's (33s, 35s, 50g ( Alg. Mode), all came up with =7.

 
Posted : August 24, 2012 6:49 am
(@spledeus)
Posts: 2772
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I still use Soh Cah Toa all time

 
Posted : August 24, 2012 8:57 am
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