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Mathematics 13 Online
OpenStudy (anonymous):

Evaluate 48 + 24 ÷ 8 – 22

OpenStudy (mathlegend):

You must use PEMDAS

OpenStudy (mathlegend):

What comes first out of the operations shown with PEMDAS?

OpenStudy (anonymous):

24 divided by 8?

OpenStudy (mathlegend):

Good... so that equals?

OpenStudy (anonymous):

3 so would is be 48+3-2 so the second power

OpenStudy (mathlegend):

That is not minus 22?

OpenStudy (anonymous):

no.

OpenStudy (anonymous):

wait so if that is an exponent do you do that first

OpenStudy (mathlegend):

\[48+24\div8-2^{2}\]

OpenStudy (mathlegend):

Yes, do the exponent first.

OpenStudy (anonymous):

\[48+24\div8-4\]

OpenStudy (anonymous):

8+4?

OpenStudy (mathlegend):

When you squared -2^2

OpenStudy (anonymous):

oh okay

OpenStudy (mathlegend):

48+24/8+4

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

and than 24/8

OpenStudy (mathlegend):

Yes.

OpenStudy (anonymous):

so than 48+3+4

OpenStudy (mathlegend):

Yes, I am sorry you were right with the -4

OpenStudy (mathlegend):

48+3-4

OpenStudy (mathlegend):

Now, we just move from left to right.

OpenStudy (mathlegend):

What did you get?

OpenStudy (anonymous):

47

OpenStudy (mathlegend):

Awesome!

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