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Mathematics 7 Online
OpenStudy (anonymous):

Simplify the expression. 55 – 4 • 5 + 12

OpenStudy (kohai):

Here you're going to do PEMDAS, have you heard of it?

OpenStudy (anonymous):

no its not when they give you the answer you give them a medal

OpenStudy (kohai):

No, when they help walk you through it and you understand everything at the end, you can give them a metal and a thank you. But merely giving an answer is against the CoC and you can be suspended for it

OpenStudy (anonymous):

PEMDAS Parenthases Exponents Multiplication Division Addition Subtraction and to remember it... Please Excuse My Dear Aunt Sally

zepdrix (zepdrix):

\[\Large\rm 55-\color{royalblue}{4\cdot 5}+12\]Multiplication ranks highest on our priorities, yes? So multiply first, what does that give you? :)

OpenStudy (anonymous):

So you multiply first -4 x 5 = ?

OpenStudy (anonymous):

i read the rule before i made this page i dont know when you got here maybe the rules changed cause it say when someone give you the answer give them a medal

OpenStudy (anonymous):

then you add that to 12

OpenStudy (anonymous):

and subtract that from 55

OpenStudy (anonymous):

-20

OpenStudy (anonymous):

-75?

OpenStudy (anonymous):

wait -63?

OpenStudy (anonymous):

Yup Good Job! -63 :)

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