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April 19, 2015

April 19, 2015

Posted by **Shadow** on Friday, April 22, 2011 at 9:40pm.

48÷2(9+3)=

( If I do it with PEMDAS, the answer would be 2, but when I type in google, it give me 288)

[ 9+3 = 12 -> 48/2(12) -> 2 x 12 = 24 -> 48/24 = 2]

- Math -
**MathMate**, Friday, April 22, 2011 at 9:57pmGoogle is right!

PEMDAS works like this:

1. Parentheses

2. Exponential

3. Multiplications and Divisions

4. Additions and subtractions.

BUT when multiplications and divisions are both present without parentheses, they are executed from*left to right*.

The same rule applies when we have additions and subtractions.

So

48÷2(9+3)

=48÷2*12

=24*12

=288

Compare with

6-2+3

=4+3

=7

- Math -
**Shadow**, Friday, April 22, 2011 at 10:05pmThanks

- Math :) -
**MathMate**, Friday, April 22, 2011 at 10:56pmYou're welcome!

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