[SPLIT] what is the order of operations?

[Gigi]

Good Morning:

I am a mother of 13 year old in Pre-Algebra and my memory is not working.

My questions is, What is the Order of Operations?

problem: (/ = divided by right?)

49 / 7 + (9-4) x 6 =

(9-4=5)

49 / 7 = 7 + 5 = 12

12 x 6 = 72

Is that correct? please advise.

Thanks.

 

[Denis]

I am a mother of 13 year old and my memory is not working.
My questions is, What is the Order of Operations?
problem: (/ = divided by right?)
49 / 7 + (9-4) x 6 =
(9-4=5)
49 / 7 = 7 + 5 = 12
12 x 6 = 72
Is that correct? please advise.

(/ = divided by right?) : yes; and * (not x) now used for multiplication
49 / 7 + (9-4) * 6 =

You're quite close, Mom; but 5 should be multiplied by 6 before the addition:

49 / 7 + 5 * 6 = 7 + 30 = 37

Your answer would be correct if expression had another set of brackets, like:
[49 / 7 + (9-4)] * 6 =

Go see here:
http://www.mathgoodies.com/lessons/vol7 ... tions.html

 

[Gigi]

Thanks sooooooo much for explaining. I understand now. I'm sure I'll be bugging you again real soon.

Have a wonderful weekend!!!!!

 

[Gigi]

THAT WEBSITE IS AWESOME! MAY GOD BLESS YOU!!! )