Question

[(40 + 5) - 3^2] ÷ 9 · 2

Answer 1

Do order of operation. So what do you do first?

Answer 2

add 40+5

Answer 3

Correct. It's going to give you 45. (You already know this)
So your equation should look like:
[(45) - 3^2] ÷ 9 · 2
What do you do next?

Answer 4

sovle the exponent

Answer 5

What does 3^2 give you?:

Answer 6

9

Answer 7

What do you do next?

Answer 8

9x2?

Answer 9

Nope. So far your equation looks like:
[(45) - 9] ÷ 9 · 2
What does order of operation say?

Answer 10

solve from left to right?

Answer 11

Do you know PEMDAS?

Answer 12

yes

Answer 13

Good.
So it says to do parenthesis or bracket first.
Do you have any parenthesis or bracket?

Answer 14

both

Answer 15

So what do you think you have to do first?

Answer 16

45-9

Answer 17

which 36

Answer 18

Correct. Now your equation look like:
[36] ÷ 9 · 2
What do you do next?

Answer 19

multple

Answer 20

Hmm. Why do you multiply first? o.o.

Answer 21

because of order of operations

Answer 22

I thought Order of Operations said:
"Rule 1: First perform any calculations inside parentheses.
Rule 2: Next perform all multiplications and divisions, working from left to right.
Rule 3: Lastly, perform all additions and subtractions, working from left to right. "
:)
So what do you do next? (By the way, the way you did was a common mistake. )

Answer 23

so we would divde

Answer 24

Okay. So after division, what would you get?

Answer 25

4

Answer 26

4 · 2
Final step?

Answer 27

mutlple and the awnser is 8

Answer 28

Correct! Do you want to ask any question(s) to me?
If not, then I hope this help! :)

Answer 29

no i dont. but thank you so much it really did help me a lot

Answer 30

Medal please? c:

Answer 31

lol true

Answer 32

Thank you very much! :)

Answer 33

no thank you