4.27.2010

i stink at math.

Math. Love it or hate it. I, for one, happen to HATE it. From the very pit of my soul. ah.
So this is sorta embarrassing for me but i am gonna just swallow my pride and get on with it.
I was doing this problem for literally 1 hour. ONE HOUR!


-5(-7+3*6-4)^2 {the little "^2" means "squared"}
looks easy enough, right? WRONG.
well here were my steps.
do do doo... (ps i will put my thoughts on the side)
-5(-7+3*6-4)^2  great. sydney, you CAN do this. *breathe*
-5(-7+18-4)^2 okay one step down...
-5(11-4)^2 wow this is easier then it looks. hmm
-5(7)^2 almost done, see sydney, you can do it.
-35^2 almosttttttt thereeeeee
1,225. *looks at answer* *WRONG* ahhhhh what did i do wrong?!?!
okay let's try it again.


this time i'll double check EVERY thing with a calculator.
-5(-7+3*6-4)^2 *checks to make sure 3*6 really does =18*
-5(-7+18-4)^2 it does. *checks to make sure -7+18=11*
-5(11-4)^2 it does. *checks to make sure 11-4 really is 7*
-5(7)^2 thats correct. where am i going wrong??
-35^2
1,225. still.the.same.darn.answer. argh.


well i'm trying it again. this time a bit different.


-5(-7+3*6-4)^2
-5(-7+18-4)^2
-5(11-4)^2
-5(7)^2
-5(14)
-70. not.even.close.


(can anyone see my mistake yet?)


well apparently 7^2 does NOT =14.
7^2 equals 49. ahhhhhhhhhh the ONLY one i did not check because i was soo sure of my math skillz.


and now it checks out.
-5(-7+3*6-4)^2
-5(-7+18-4)^2
-5(11-4)^2
-5(7)^2
-5(49)
-245


yeah, i stink at math. poor me.


thanks for reading.
~Sydney

6 comments:

Shannon Mills said...

Soooo glad I don't have to do that kind of math anymore.

Although I do wish it came easier. It's just so. much. effort. No?!

Perhaps if you master your math skillz, the cupcakes will follow? Heeheehee.

Sydney said...

YAY my first comment. (other then family) (:
thank you ! <3

Sydney said...

and yes, i will probably get better at making cupcakes faster then learning this stupid math.

Don McChesney said...

Sydney,
You had the wrong answer because you forgot to use the order of operations rule! PEMDAS - parentheses, exponents, multiplication, division, addition, subtraction. In the first example of your post, you did everything right until you multiplied the 7 by -5. Pemdas says that after the parentheses, then you handle the exponent!

Math is the BOMB!

Sydney said...

no it is NOT. but im glad to have math geeks like you to help a sister out. (:

juneheller said...

Math still gets me into trouble...

http://juneispregnant.blogspot.com/2008/11/heres-little-tip.html