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

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The discussion centers around a user admiring another's mathematical intelligence and inquiring about their educational background. The main mathematical question posed is about the order of operations in the expression "2 + 2/2," which is clarified to equal 3 due to the precedence of division over addition. The order of operations is explained using the mnemonic "Please Excuse My Dear Aunt Sally," emphasizing the sequence of operations. A misunderstanding about reading left to right is addressed, reinforcing that operations must follow the established order rather than a simple left-to-right approach. The conversation highlights the importance of understanding mathematical principles and the order of operations.
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yo man u seem really really smart. i was wondering if u don't 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 don't mind could u tell me? also i don't have a question. 2+2/2 wahts the answer 2 or 3? there are no parenthesis i know that would change it.
 
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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
 
Actually, "Hals" is my cousin. I'm "Halls"!
 
Originally posted by HallsofIvy
Actually, "Hals" is my cousin. I'm "Halls"!
You all look the same to me.

- Warren
 
ah, a typo discovered i have. mb. also i thought that you were supposed to work left to right? isn't that a rule too? maybe I am just crazy.
 
Last edited:
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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