48÷2(9+3) = ???

[triplexl vol 2]

Originally Posted by UnkleTomCruze

Originally Posted by HankMoody

Originally Posted by UnkleTomCruze


Do the brackets dissapear if you do:

2x 1(12)?

...

...

Exactly! The parentheses only disappear after you multiply 1 and 12 just like the parentheses only disappear after 2 and 12 are multiplied in the original problem.

But see,

2(12) is really 2x 1(12), and you yourself have just stated that parenthesis will disappear after multiplying the 1 and the 12, so the equation then become

2 x 12 (no parenthesis...

...

)

Apply this to the entire equation and you get  48 ÷ 2 x 12. Now solve your equation by working from left to right (as the division and multiplication sign have equal ranking) and you get:

24 x 12 = 288.

...

Insert rockclapping.gif

 

[trethousandgt]

Originally Posted by ATLien Seeko

Answer is 2

P.E.M.D.A.S.

() first

 

[limitedretroog]

People need to understand: parenthesis are like people. They're not gonna stick around forever!

 

[trethousandgt]

Originally Posted by ATLien Seeko

Answer is 2

P.E.M.D.A.S.

() first

 

[jhustle23]

This thread is funny. I see how you can get either answer, but really it's not this serious.

 

[two one supreme]

The real question will be whether this post gets closer to 2 pages or 288 pages SMH    






These two things are not equal or the same thing at all:     2 x 1(9+3)     and    2(9+3)             







Parenthesis (x) are assumed to be quantified  by 1:   1(x)    unless specified  by another number other than 1.   In this case "2":     2(x)

 

[limitedretroog]

People need to understand: parenthesis are like people. They're not gonna stick around forever!

 

[jhustle23]

This thread is funny. I see how you can get either answer, but really it's not this serious.

 

[two one supreme]

The real question will be whether this post gets closer to 2 pages or 288 pages SMH    






These two things are not equal or the same thing at all:     2 x 1(9+3)     and    2(9+3)             







Parenthesis (x) are assumed to be quantified  by 1:   1(x)    unless specified  by another number other than 1.   In this case "2":     2(x)

 

[quiickz]

Microsoft Excel gave me 288.

 

[quiickz]

Microsoft Excel gave me 288.

 

[rocky437]

But see,

2(12) is really 2x 1(12),     ... no its not. 

 

[rocky437]

But see,

2(12) is really 2x 1(12),     ... no its not. 

 

[teamjordan79]

Originally Posted by UnkleTomCruze

Originally Posted by snakeyes17

Originally Posted by TeamJordan79


Please Excuse M(ultiplication)y D (ivision)ear Aunt Sally 

thus 2x12 takes precedence over the division.

I got 2 

It's Multiplication or Division, whichever comes first....

THIS.

The multiplication and division have equal ranking.


...

ok. To make it less ambiguous.....If i wanted to get the answer 2 i would write it like 48/(2(9+3))?  

if i wanted 288 I would write it like (48/2)*(9+3)?

amIright?

 

[teamjordan79]

Originally Posted by UnkleTomCruze

Originally Posted by snakeyes17

Originally Posted by TeamJordan79


Please Excuse M(ultiplication)y D (ivision)ear Aunt Sally 

thus 2x12 takes precedence over the division.

I got 2 

It's Multiplication or Division, whichever comes first....

THIS.

The multiplication and division have equal ranking.


...

ok. To make it less ambiguous.....If i wanted to get the answer 2 i would write it like 48/(2(9+3))?  

if i wanted 288 I would write it like (48/2)*(9+3)?

amIright?

 

[pacmagic2002]

Originally Posted by Jhustle23

This thread is funny. I see how you can get either answer, but really it's not this serious.

So when one of these NTers saying its 2 becomes a rocket scientist for NASA 20 years down the line and this equation comes up in their work.....it wont make a difference?

 

[pacmagic2002]

Originally Posted by Jhustle23

This thread is funny. I see how you can get either answer, but really it's not this serious.

So when one of these NTers saying its 2 becomes a rocket scientist for NASA 20 years down the line and this equation comes up in their work.....it wont make a difference?

 

[unkletomcruze]

Originally Posted by HankMoody

Originally Posted by UnkleTomCruze

Originally Posted by HankMoody





Exactly! The parentheses only disappear after you multiply 1 and 12 just like the parentheses only disappear after 2 and 12 are multiplied in the original problem.

But see,

2(12) is really 2x 1(12), and you yourself have just stated that parenthesis will disappear after multiplying the 1 and the 12, so the equation then become

2 x 12 (no parenthesis...

...

)

Apply this to the entire equation and you get  48 ÷ 2 x 12. Now solve your equation by working from left to right (as the division and multiplication sign have equal ranking) and you get:

24 x 12 = 288.

...

That's only because the number you used is 1. Use any other number and you have to resolve the parentheses first. Put .5 and it's not 2 x .5 x 12.
.5(12) must be done first.

Why would I want to use any other number but 1 though?

Any other number changes the original equation where 1 doesn't.


...

 

[servechilled81]

Originally Posted by TeamJordan79


Please Excuse M(ultiplication)y D (ivision)ear Aunt Sally 

thus 2x12 takes precedence over the division.

I got 2 

no it doesn't.  multiplication and division are done in the order that they appear, same as addition and subtraction
they really need to change the way they teach PEMDAS.  I don't plan on teaching higher than 4th grade so hopefully

I won't have to deal with that in my classroom

 

[servechilled81]

Originally Posted by TeamJordan79


Please Excuse M(ultiplication)y D (ivision)ear Aunt Sally 

thus 2x12 takes precedence over the division.

I got 2 

no it doesn't.  multiplication and division are done in the order that they appear, same as addition and subtraction
they really need to change the way they teach PEMDAS.  I don't plan on teaching higher than 4th grade so hopefully

I won't have to deal with that in my classroom

 

[unkletomcruze]

Originally Posted by HankMoody

Originally Posted by UnkleTomCruze

Originally Posted by HankMoody





Exactly! The parentheses only disappear after you multiply 1 and 12 just like the parentheses only disappear after 2 and 12 are multiplied in the original problem.

But see,

2(12) is really 2x 1(12), and you yourself have just stated that parenthesis will disappear after multiplying the 1 and the 12, so the equation then become

2 x 12 (no parenthesis...

...

)

Apply this to the entire equation and you get  48 ÷ 2 x 12. Now solve your equation by working from left to right (as the division and multiplication sign have equal ranking) and you get:

24 x 12 = 288.

...

That's only because the number you used is 1. Use any other number and you have to resolve the parentheses first. Put .5 and it's not 2 x .5 x 12.
.5(12) must be done first.

Why would I want to use any other number but 1 though?

Any other number changes the original equation where 1 doesn't.


...

 

[two one supreme]

MY POOR AUNT SALLEY IS ROLLING OVER IN HER GRAVE!!!!   

 

[two one supreme]

MY POOR AUNT SALLEY IS ROLLING OVER IN HER GRAVE!!!!   

 

[cdonwashisname]

My calc gives me 2
I guess mines goes with ((2*9)+(2*3))

 

[cdonwashisname]

My calc gives me 2
I guess mines goes with ((2*9)+(2*3))