• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Need middle school math help

wnied

wnied

Diamond Member
24 + 8 / 2 X 6 - 4

musing pemdas, how can I make this equal 6?

I r math stupid

wnied
 
If 24 is outside the division, it's too large: 24-4 = 20, and something's added to that.

If 24 is part of the division, you have (24+8)/y = 32/y.

if 32/y = 6, then y = 32/6 = 5.333... You can't get that from integers without another division.

I think the normal answer is 44.
 
Ken g6 said:
If 24 is outside the division, it's too large: 24-4 = 20, and something's added to that.

If 24 is part of the division, you have (24+8)/y = 32/y.

if 32/y = 6, then y = 32/6 = 5.333... You can't get that from integers without another division.

I think the normal answer is 44.
Click to expand...

yea, without parenthesis I got 44
 
Lost_in_the_HTTP said:
24 + 8 = 32 / 2 = 16 x 6 = 96 - 4 = 92
Click to expand...
Please tell me this is a joke.

First, that is completely missing the point of order of operations. Second, most of your equalities are not equal. For example, look at your first equality. 24 + 8 is NOT equal to 32 / 2. Never has been, never will be.

According to correct order of operations, you add parentheses like this:
(24) + ((8 / 2) X 6) + (- 4)

Now do the work inside parenthesis before doing anything else. There is no situation in the given math where 24 is added to 8.
 
Also, if the OP's math problem was written correctly, this would never be a confusion to anyone who can do math. Why leave it up to possible incorrect interpretations? Just write it like this and almost everyone will do it right: (24) + ((8 / 2) X 6) + (- 4)
 
I got 116.

24 + 8 / 2 X 6 - 4

Using PEMDAS (remember, multiplication and division are done left-right, whichever comes first)
24 + ((8/2) * 6) - 4

24 + 96 - 4 = 116



EDIT: Nevermind, I got 44. 8/2 = 4, not 16. Me so dumb.
 
What is the original prompt? This current post isn't clear since it doesn't equal 6. Can you move the numbers around? Can you put parenthesis anywhere you want?
 
snoopy7548 said:
I got 116.

24 + 8 / 2 X 6 - 4

Using PEMDAS (remember, multiplication and division are done left-right, whichever comes first)
24 + ((8/2) * 6) - 4

24 + 96 - 4 = 116



EDIT: Nevermind, I got 44. 8/2 = 4, not 16. Me so dumb.
Click to expand...
You also added in an extra set of parens that is not needed.

24 + ( 8 / 2 * 6) - 4

Just one set is all that is needed.
 
serpretetsky said:
What is the original prompt? This current post isn't clear since it doesn't equal 6. Can you move the numbers around? Can you put parenthesis anywhere you want?
Click to expand...
I think the prompt is asking the user to write in parenthesis into the equation such that the final answer would be 6?
 
Closest I came is 4 by adding my own. Funny, I was kinda thinking the same thing, as adding your own parentheses is a great way to reinforce PEMDAS

24 + 8 / 2 X 6 - 4

(24 + 8) / (2 x 6 - 4)

(32) / (12 - 4)

(32) / (8)

4
 
ch33zw1z said:
Closest I came is 4 by adding my own. Funny, I was kinda thinking the same thing, as adding your own parentheses is a great way to reinforce PEMDAS

24 + 8 / 2 X 6 - 4

(24 + 8) / (2 x 6 - 4)

(32) / (12 - 4)

(32) / (8)

4
Click to expand...
Yes I wonder if OP made a typo or the math book made a typo.
 
dank69 said:
He was clearly piping his results. Not saying it is okay, but that is what he was doing.
Click to expand...
Yes. But it both got him the wrong result and spreads the idea that math works that way. It doesn't. Just skip the shortcuts that are factually incorrect. They are not the way to success.
 
wnied said:
24 + 8 / 2 X 6 - 4

musing pemdas, how can I make this equal 6?
Click to expand...

You can't because the end result is 44.

The order of the operations is as follows: Unless with a parentheses, no + or - operation is conducted BEFORE an * or : operation.

24 + 8 : 2 * 6 - 4 =
24 + 4 * 6 - 4 =
24 + 24 - 4 =
48 - 4 =
44

Those that said 44 was the answer are correct.
 
I think I figured it out. Just by ignoring a few rules of math, you can get 6.

I'll multiply everything by 1. That won't affect anything. Since most numbers divided by themselves is equal to 1, we can use y / y = 1.
  • (24 + 8 / 2 * 6 - 4) * y / y
Now, split out that multiplication:
  • (24 * y + 8 * y / 2 * 6 - 4 * y) / y
Lets just choose any completely randomly chosen number. Nothing complicated though. Lets choose, lets say, for no particular reason, that maybe y = 0. Clearly 24 * 0 = 0. Also 4 * 0 = 0. So now we get:
  • (24 * 0 + 8 * y / 2 * 6 - 4 * 0) / y
  • (8 * y / 2 * 6) / y
Well we also know that 8 * y / 2 = 0 = y , so now it becomes
  • (y * 6) / y
Just cancel out the y values and, it is simple
  • 6 * (y / y)
  • 6 * 1
  • 6
Just ignore that one underlined word above.
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top