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Math Help - BODMAS Rule application

  1. #1
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    BODMAS Rule application

    Today I want to share what Is BODMAS Rule & How to use it?

    BODMAS rule decides the order of operations for add, subtract, multiply, divide, etc as below shown
    B-Brackets (do all operations contained in the brackets first)
    O-Orders (powers and square roots etc)
    D-Division
    M-Multiplication
    A-Addition
    S- Subtraction

    Letís see an example and check how BODMASS Rule works
    30-(2*6+15/3) +8*3/6

    Step1: Brackets
    2*6+15/3 = 12+5 = 17

    Step2: Division
    30-17+8*1/2

    Step3: Multiplication
    30-17+4

    Step 4: Addition and Subtraction
    30-17+4=17


    20+30-5/4*2+ (1+6)
    (5-6/4)+9*7
    1-6*(2+9)/8


    BODMAS Rule is very helpful in solving various algebra math problems.
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  2. #2
    MHF Contributor

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    Re: BODMAS Rule application

    I prefer "Please Excuse My Dear Aunt Sally"
    P: Parentheses
    E: Exponents
    M: Multiplication
    D: Division
    A: Addition
    S: Subtraction

    In any case, mnemonics are to help you remember things you don't understand. Understanding what you are doing is always better than memorizing rules. For example, you mnemonic has "D", division, before "M", multiplication while mine has them reversed. Do you understand why it doesn't matter?
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