PEMDAS

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English[edit]

Phrase[edit]

PEMDAS

  1. (mnemonic) An acronym used by mathematics students to remember the order of operations: parentheses, then exponents, then multiplication and division, then addition and subtraction

Usage notes[edit]

This mnemonic leads many to the error that multiplication is precedent to division, and addition to subtraction; however, these are within the pairs equal in precedence and resolved from left to right. (E.g., 6-3+2 = (6-3)+2, 6/3*2 = (6/3)*2, so here subtraction is done before addition, and division is done before multiplication.)

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