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Math Help - Help... math teaser

  1. #1
    decoy
    Guest

    Help... math teaser

    hey all

    need help.

    4+7+12+18=___*16-450*180=___-20000+1000*.01+5280.2=___

    This is the equation my friend gave me.

    I am suppose to get a 4 digit number at the end

    I get -95053.8... that is not the correct number

    d
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  2. #2
    Site Founder MathGuru's Avatar
    Joined
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    Order of operations

    In order for this equation to wrok you must consider order of operations.

    Math does not simply read left to right. Use the 'word' PEMDAS to remember.

    P-Parenthases
    E-Exponent
    M-Multiplication
    D-Division
    A-Addition
    S-Subtraction

    In this case your answer of -95053.8 is correct however your friend might have not considered order of operations.
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  3. #3
    Newbie Matrix's Avatar
    Joined
    Mar 2005
    Posts
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    Hello,

    You better ask your friend the answer, as even if you are not following the math order of operation you still will not get a 4 digit answer.
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