Question

4 + 2 [8 + (3 - 1)^2]
my answer is 72

Answer 1

unlucky :)
3-1=2
2^2=4
8+4=12
2 * 12 = 24
4 + 24 = 28

Answer 2

how did we get from all your hard questions to arithmetic?

Answer 3

3 - 1 = 2
2^2

Answer 4

@satellite73 switched courses

Answer 5

2^2= 4

Answer 6

8 + 4? I thought?

Answer 7

yes

Answer 8

8 + 4 = 12

Answer 9

12 + 4 + 2
12 + 6
=
18

Answer 10

oops

Answer 11

at which part?

Answer 12

4 + 2 [12]

Answer 13

ohhhhhh brackets

Answer 14

you have 4 plus 2 times 12

multiplication first

Answer 15

thank you

Answer 16

i appreciate your help so much

Answer 17

after you get to 4 + 2[12]
it is not the brackets... it is that you are doing multiplication

Answer 18

in other words 2*(12) is the same as 2*12 (we can drop the parens)

Answer 19

if you want to see videos
http://www.khanacademy.org/math/arithmetic/multiplication-division/order_of_operations/v/introduction-to-order-of-operations

and the others in that section might make all this very clear.

Btw, it makes no sense to not learn this, because if you don't the rest of math will be a total mystery... you need to know this to do more complicated stuff.

Answer 20

it was one simple mistake...jesus christ...thanks