#1

So I took the first half of my math MCAS (state standardized test in Massachusetts) test today, and I came across this problem. I asked about 5 people, and none of them got it, and my friend didn't get it, and they said that they asked people who also didn't get it. So I was wondering if someone could solve it here, since there are some smart bastards on this forum.

6/3*2

Insert

* is multiplication, / is division, if that's unclear. And it's a fraction sorta thing.

__8*15+20/5__= 386/3*2

Insert

**ONE**set of parentheses to make the expression true.* is multiplication, / is division, if that's unclear. And it's a fraction sorta thing.

#2

I only know math. Not this "maths" you speak of.

#3

__8*(15+20/5)__

6/3*2

EDIT:

numerator:

8*(15+20/5) = 8*(15+4) = 8*19 = 152

denominator:

6/3*2 = 2*2 = 4

thus, 152/4 = 38

google agrees

*Last edited by paintITblack39 at May 17, 2011,*

#4

8*(15+20/5)= 38

6/3*2

There.

#5

I only know math. Not this "maths" you speak of.

How ironic.

#6

8*(15+20/5)

6/3*2

EDIT:

numerator:

8*(15+20/5) = 8*(15+4) = 8*19 = 152

denominator:

6/3*2 = 2*2 = 4

thus, 152/4 = 38

google agrees

In the denominator, don't you do the division before the multiplication? I'm going off PEMDAS, which I learned in 6th grade.

#7

#8

"BLAH BLAH BLAH math BLAH BLAH BLAH" is the answer

#9

multiplication is the same thing as division they are interchangeable.

#10

In the denominator, don't you do the division before the multiplication? I'm going off PEMDAS, which I learned in 6th grade.

multiplication and division are kind of the same as far as operations go. think about it, division is basically multiplying a number by another number's reciprocal.

16/4 is the same is 16*0.25 (0.25 is the reciprocal of 4).

your teacher should have told you that PEMDAS can also take the form of PEDMAS, PEDMSA, or PEMDSA.

http://en.wikipedia.org/wiki/Order_of_operations

*Last edited by paintITblack39 at May 17, 2011,*

#11

multiplication and division are kind of the same as far as operations go. think about it, division is basically multiplying a number by another number's reciprocal.

16/4 is the same is 16*0.25 (0.25 is the reciprocal of 4).

your teacher should have told you that PEMDAS can also take the form of PEDMAS, PEDMSA, or PEMDSA.

http://en.wikipedia.org/wiki/Order_of_operations

I'm changing my answer when I get my test back tomorrow. Thanks very much, good sir.