Pre-Algebra

What does P-E-M-D-A-S mean?
I know they are the orders of operation, but I forgot what each letter stand for???

HELP!

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  1. Do things in Parentheses First.
    Exponents (Powers, Roots) before Multiply, Divide, Add or Subtract.
    Multiply or Divide before you Add or Subtract.
    Otherwise just go left to right.

    Go to google and type Pemdas for examples

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  2. what is -5+4(8)?

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