Order of Operations
It is essential to do mathematical operations in the proper order or you will get the wrong answer. You may have heard of "Please Excuse My Dear Aunt Sally" or PEMDAS. Both are mnemonics for Parentheses, Exponents, Multiplication & Division, and Addition & Subtraction. Multiplication and division should be done in order of appearance from left to right; same for addition and multiplication. Visit this website to review the Order of Operations:
http://mathforum.org/dr.math/faq/faq.order.operations.html
and then watch the video below.
http://mathforum.org/dr.math/faq/faq.order.operations.html
and then watch the video below.
___If the video above is not working, you need to download the Adobe Flash player.
Still need help remembering? Here's a song: http://www.uen.org/
PRACTICE
Here is a tutorial you can do: http://amby.com/educate/ord-op/
ASSESS
Think you've got it? Try this interactive assessment:
http://www.khanacademy.org/exercises?exid=order_of_operations
Still need help remembering? Here's a song: http://www.uen.org/
PRACTICE
Here is a tutorial you can do: http://amby.com/educate/ord-op/
ASSESS
Think you've got it? Try this interactive assessment:
http://www.khanacademy.org/exercises?exid=order_of_operations
_Copyright © Lisa Sheridan, 2011. All Rights Reserved.
No original material may be copied from this website without
explicit permission from the author.
No original material may be copied from this website without
explicit permission from the author.