Author Topic: 48÷2(9+3) = ? (Read 7048 times)

[MAF]Cromiell · « **on:** November 21, 2011, 01:21:01 pm »

How do you think?

48÷2(9+3) = 2 or 288

Pole has been created. Comment on that question, please.

[MAF]Vertigo · « **Reply #1 on:** November 21, 2011, 01:31:20 pm »

i think it's 2

[MAF]mourad · « **Reply #2 on:** November 21, 2011, 01:38:49 pm »

[MAF]Snoopy · « **Reply #3 on:** November 21, 2011, 01:50:24 pm »

Quote from: [MAF]Mourad on November 21, 2011, 01:38:49 pm

wtf?

Rob_Zamora · « **Reply #4 on:** November 21, 2011, 01:57:43 pm »

it's 2, how do you get 288?

[FSR]Ush · « **Reply #5 on:** November 21, 2011, 02:07:49 pm »

Quote from: [MAF]Cromiell on November 21, 2011, 01:21:01 pm

48÷2(9+3) = 2 or 288

( ) First. So 9+3 = 12. This is still between ( ), so you do 2 * 12 = 24. Then 48/24 = 2.

And the wrong way:
48/2 = 24, then * (12) = 288.

You always need to calculate the ( ) first, then / or * and after that + and -. That is why the second answer is wrong imo.

ЯYӨƧЦKΣ · « **Reply #6 on:** November 21, 2011, 02:08:18 pm »

obviously it's 2!

[LSR]Jarol · « **Reply #7 on:** November 21, 2011, 02:31:14 pm »

Quote from: [MAF]Mourad on November 21, 2011, 01:38:49 pm

wtf?

Karlip · « **Reply #8 on:** November 21, 2011, 02:42:05 pm »

Was gonna vote 288, then reminded myself that you have to open the brackets first. Rule says so.

b00tsyou · « **Reply #9 on:** November 21, 2011, 02:42:29 pm »

48/2(9+3) = 48/2*(9+3) = 24*12= 288

/ * are equal according to priority order

to make 2 it's 48/(2(9+3)) => more () to force priority to the invisible * (of 2*(9+3) )

... · « **Reply #10 on:** November 21, 2011, 02:57:34 pm »

I'm (2+25*4-V4+0²/5)% sure the correct answer is 2.

[2F2F]Phil_Ivey · « **Reply #11 on:** November 21, 2011, 03:00:25 pm »

288 is the correct answer. multiplying and dividing are equal, so you divide 48/2 1st because its infront

pod · « **Reply #12 on:** November 21, 2011, 03:03:00 pm »

http://www.wolframalpha.com/input/?i=48%2F2*%289%2B3%29

288 is correct

[MAF]Cromiell · « **Reply #13 on:** November 21, 2011, 03:15:26 pm »

Your argueing is interesting. 50% wrong 50% correct.
We'll see what rest thinks.

b00tsyou · « **Reply #14 on:** November 21, 2011, 03:53:37 pm »

maybe some buggy calculator or pc fail and answer 2

musicloveR · « **Reply #15 on:** November 21, 2011, 04:00:07 pm »

Quote from: [LSR]Bootsyou on November 21, 2011, 02:42:29 pm

48/2(9+3) = 48/2*(9+3) = 24*12= 288

[LSR]Cypher · « **Reply #16 on:** November 21, 2011, 07:30:14 pm »

i think this way:

48(9+3)/2=(48*12)/2=288
48/2(9+3)=48/(2*12)=2
48/2(9+3)≠48(9+3)/2
So, the answer is 2.

Btw nice thread crom

[MAF]Aj_Lajk_Bir · « **Reply #17 on:** November 21, 2011, 07:37:11 pm »

i trust Bootsyou cause he is maths teacher

ivanduk · « **Reply #18 on:** November 21, 2011, 10:09:40 pm »

48÷2 * (9+3) =
24 * 12 = 288 (real answer)

if the answer is 2 then it has to be like

48 / ((9+3) * 2) =
48 / 12 * 2 =
48 / 24 = 2

[MAF]mourad · « **Reply #19 on:** November 21, 2011, 10:12:21 pm »

my mind = blown

ivanduk · « **Reply #20 on:** November 21, 2011, 10:13:52 pm »

same thing with 5 - (2+3)

if we calculate 5 - (2+3) equals 0

but if we remove quotes () it will be 5-2+3 which equals 6

hope i cleared it up

[MAF]mooman · « **Reply #21 on:** November 22, 2011, 12:34:50 am »

order of operations!

i've seen quite a few of these on facebook mostly with something like 5 + 5 + 5 + 5 + 5 + 5 x 0 having 0 as the most popular answer "cos anything times 0 is 0!" which is true but you do multiplication/division before subtraction/addition so you do 5 x 0 first THEN the rest. and if that's too tough for you just use wolfram alpha

some_punk · « **Reply #22 on:** November 22, 2011, 03:31:00 am »

the parenthesis are already * or x . eg: 2(5)=10

48/2(9+3)= X
48/2(12) = X
48/24 = X
2 = X

X=2

[MAF]Cromiell · « **Reply #23 on:** November 22, 2011, 06:58:12 am »

Why are you guys putting number 12 into brackets after adding numbers. There is not point in it I guessss? That's why you give the wrong answers.

Scorpion. · « **Reply #24 on:** November 22, 2011, 10:14:40 am »

Quote from: Nikki on November 21, 2011, 04:00:07 pm

Quote from: [LSR]Bootsyou on November 21, 2011, 02:42:29 pm
48/2(9+3) = 48/2*(9+3) = 24*12= 288

troll maths btw corrects is 288

[AK47]M4lysz · « **Reply #25 on:** November 22, 2011, 11:46:52 am »

ivanduk · « **Reply #26 on:** November 22, 2011, 01:47:50 pm »

A common technique for remembering the order of operations is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". This tells you the ranks of the operations: Parentheses outrank exponents, which outrank multiplication and division (but multiplication and division are at the same rank), and these two outrank addition and subtraction (which are together on the bottom rank). When you have a bunch of operations of the same rank, you just operate from left to right.

288.

[MAF]Snoopy · « **Reply #27 on:** November 22, 2011, 01:50:44 pm »

superrammer_ · « **Reply #28 on:** November 22, 2011, 02:41:45 pm »

48÷2(9+3)=48:2(12)=48:2x12=24x12=288

[FSR]Ush · « **Reply #29 on:** November 22, 2011, 02:53:44 pm »

We know the outcome. Locked.

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48÷2(9+3) = ?

Author Topic: 48÷2(9+3) = ? (Read 7048 times)