Results 1 to 3 of 3

Math Help - Order of Operations

  1. #1
    Newbie
    Joined
    Apr 2005
    Posts
    2

    Order of Operations

    Hi

    I don't understand how to evaluate this:

    2 x 10 - 3 x 2 + 12 2
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Member
    Joined
    Apr 2005
    Posts
    103
    Quote Originally Posted by Valeri P
    Hi

    I don't understand how to evaluate this:

    2 x 10 - 3 x 2 + 12 2

    (1) Parentheses
    (2) Multiply and divide
    (3) Add and subtract
    There will be more between (1) and (2).

    When in doubt, put parentheses during work.

    = (2 x 10) - (3 x 2) + (12 2)
    = 20 - 6 + 6
    = 20


    By the way, * is multiply, / is divide.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Evan
    Guest
    An easy way to remember the Order of Operations is:
    PEMDAS = Please Excuse My Dear Aunt Sally or Please End My Day At School

    P -- Parentheses
    E -- Exponents
    M -- Multiply &
    D -- Divide
    A -- Add &
    S -- Subtract
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Order of Operations
    Posted in the Algebra Forum
    Replies: 1
    Last Post: March 22nd 2011, 02:06 PM
  2. Order of Operations
    Posted in the Algebra Forum
    Replies: 3
    Last Post: January 26th 2010, 05:56 PM
  3. Order of operations
    Posted in the Algebra Forum
    Replies: 7
    Last Post: September 30th 2009, 02:44 PM
  4. order of operations
    Posted in the Algebra Forum
    Replies: 4
    Last Post: November 25th 2008, 09:20 PM
  5. Replies: 5
    Last Post: February 6th 2006, 03:13 AM

Search Tags


/mathhelpforum @mathhelpforum