Yo man u seem really really smart. i was wondering if u dont mind me

  • Thread starter kai0ty
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  • #1
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Main Question or Discussion Point

yo man u seem really really smart. i was wondering if u dont mind me asking where did u go to school and what did u major in. i love math, its fascinating, and u seem to have a very in depth understanding of it so if u dont mind could u tell me? also i dont have a question. 2+2/2 wahts the answer 2 or 3? there are no parenthesis i know that would change it.
 

Answers and Replies

  • #2
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2+2/2 = 2+1 = 3

Why? Order of operations.

here's a way to remember...
Please Excuse My Dear Aunt Sally
P=Parentheses
E=Exponents
M=Multiplication
D=Division
A=Addition
S=Subtraction

In other words, first solve brackets, then parentheses, then multiplication/division, then addition/subtraction last.


In the case of "2 + 2/2"...
First: Division (2/2)
Second: Addition (2+1)

Thus, 2+2/2 = 3
 
  • #3
HallsofIvy
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Actually, "Hals" is my cousin. I'm "Halls"!
 
  • #4
chroot
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Originally posted by HallsofIvy
Actually, "Hals" is my cousin. I'm "Halls"!
You all look the same to me.

- Warren
 
  • #5
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ah, a typo discovered i have. mb. also i thought that you were supposed to work left to right? isnt that a rule too? maybe im just crazy.
 
Last edited:
  • #6
HallsofIvy
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No, you READ left to write (well, those of us of European linguistic bent). You do operations in the defined order as Brum said. As far as you being crazy- I wouldn't presume.
 

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