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-   -   48÷2(9+3) = ??? (http://cellar.org/showthread.php?t=24914)

Flint 04-14-2011 09:53 PM

48÷2(9+3) = ???
 
Just a simple test of your math skills. What is the correct answer, and why?

monster 04-14-2011 09:55 PM

2

because it's the right answer

Undertoad 04-14-2011 10:11 PM

288

SamIam 04-14-2011 10:11 PM

(48/2)(9+3) = 144

48/(2(9+3)) = 2

Any other boring 3rd grade arithematic questions?

Oh yeah, 48/2=24 (duh), 24x12=288

UT wins!

BigV 04-14-2011 10:35 PM

2

Cloud 04-14-2011 10:47 PM

?

Undertoad 04-14-2011 10:48 PM

288. The reason is order of operations

Quote:

The standard order of operations, or precedence, is expressed here:
terms inside brackets
exponents and roots
multiplication and division
addition and subtraction

monster 04-14-2011 10:49 PM

Quote:

Originally Posted by Undertoad (Post 723165)

Quote:

Originally Posted by SamIam (Post 723166)
(48/2)(9+3) = 144

48/(2(9+3)) = 2

Any other boring 3rd grade arithematic questions?

Oh yeah, 48/2=24 (duh), 24x12=288

UT wins!

No, terms inside brackets precede division.

monster 04-14-2011 10:50 PM

Quote:

Originally Posted by Undertoad (Post 723169)
288. The reason is order of operations

exactly. you did the division first. brackets first.

Undertoad 04-14-2011 10:51 PM

no i did the parens first and then, from left to right, division and then multiplication

monster 04-14-2011 10:53 PM

brackets (parentheses to yanks) first: 9+3 = 12.

brackets are mutiplied by 2 = 24

.......

Cloud 04-14-2011 10:53 PM

logically, how can 48 divided by anything be 288? I still say 2

monster 04-14-2011 10:55 PM

the multiplication by 2 is part of the brackets phrase. Otherwise it would be written 48 / 2 * (9+3)

Undertoad 04-14-2011 10:56 PM

it is written that way.

brackets first 9+3 = 12

then division 48/2 = 24

then multiplication 24 * 12 = 288

Cloud 04-14-2011 10:56 PM

I do not see any brackets.


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