PRACTICE WITH ORDER OF OPERATIONS
• PRACTICE (online exercises and printable worksheets)
For a complete discussion, read the text.

The order that operations are to be performed (when not clearly identified)
is summarized with the following memory device:

Please   Excuse   My   Dear   Aunt   Sally    (PEMDAS)

• Do things inside Parentheses first (using PEMDAS, if needed, inside the parentheses).
• Then do all Exponents, in order as they occur, going from left to right.
• Then do all Multiplications/Divisions (they have equal weight) in order as they occur, going from left to right.
• Finally, do all Additions/Subtractions (they have equal weight) in order as they occur, going from left to right.

EXAMPLES:
$-1 + 3\times 5 - 2 = -1 + (3\times 5) - 2 = 12$
$2 - 10\div 5 + 3 = 2 - \frac{10}{5} + 3 = 3$
Master the ideas from this section