PRACTICE WITH ORDER OF OPERATIONS

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)

EXAMPLES:
[beautiful math coming... please be patient] $-1 + 3\times 5 - 2 = -1 + (3\times 5) - 2 = 12$
[beautiful math coming... please be patient] $2 - 10\div 5 + 3 = 2 - \frac{10}{5} + 3 = 3$
Master the ideas from this section
by practicing the exercise at the bottom of this page.

When you're done practicing, move on to:
Taking PEMDAS Too Literally: Don't Make This Mistake!

 
 

Feel free to use a pencil and scrap paper to work these problems.
However, do not use your calculator!

Simplify:
    
(an even number, please)