482(9+3)

Status
This thread has been locked.

ShinySwordStorm

◀ Freelance Illustrator/Musician ▶
Premium
Feedback score
4
Posts
242
Reactions
146
Resources
0
Wrong. You didn't write it out correctly, firstly, the one one the right has two divisions, which there clearly isn't. The first one should be like this:
48
_ (9+3) simplified to 24(9+3) and you get the rest.
2

http://www.wolframalpha.com/input/?i=48÷2(9+3)

So you're wrong.
The right one is wrong but the one of the left is completely correct. You can't just divide the 48 by 2 because it's next to a parentheses.
 

Lyphiard

Supreme
Feedback score
25
Posts
621
Reactions
1,156
Resources
0
Please don't start up the argument again. If a math teacher says it's 2, then it's probably the correct answer.
There are plenty of stupid math teachers out there. I would understand if the original problem contained a fraction sign "48/2(9+3)", but it was "48÷2(9+3)". Any math teacher that interprets that as "48÷(2(9+3))" should be immediately fired.
 

Jack

Retired Moderator
Supreme
Feedback score
11
Posts
1,210
Reactions
1,462
Resources
0
The problem is people see 2(9+3) and think they have to do that first, but ( isn't a real operator.
Anytime you see a(b) or (a)b or (a)(b) or ab, you are multiplying.
Therefore, 2(9+3) is actually 2*(9+3), and there's no disputing that.

So now, technically and correctly, you have 48/2*(9+3), just use PEMDAS (or whatever you would like to call it)
Parenthesis:
(9+3) = 12

So now you have 48/2*12 (there's no way to get this wrong, unless you're daft, it's just left to right)
Multiply/divide (left to right)
48/2 = 24

So now you have 24*12
24*12 = 288
 

qp.

db.
Premium
Feedback score
0
Posts
142
Reactions
53
Resources
0
288.
 
Status
This thread has been locked.
Top