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Posted by on Thursday, February 9, 2012 at 3:21pm.

What is
-16 + -8 x -2 -(4-9)= ?

I did it and got -72. I want to know if I'm right. I'm so confused with operations. Would you subtract the numbers and add, then multiply?

  • math - , Thursday, February 9, 2012 at 3:30pm

    Remember PEMDAS

    parentheses
    exponents
    multiply
    divide
    add
    subtract

    http://www.mathsisfun.com/operation-order-pemdas.html

    -16 + -8 x -2 -(4-9)=

    Parentheses: (4 - 9) = -5

    -16 + -8 x -2 -(-5)=

    Exponents: none

    Multiply: -8 * -2 = 16

    -16 + 16 -(-5)=

    Divide: none

    Add/Subtract

    -16 + 16 + 5 = 5

  • math - , Thursday, February 9, 2012 at 7:07pm

    Thank you

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