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  1. #21
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    Quote Originally Posted by INTP View Post
    for example this: ((5-3+(6x5)) + (8+2-5)) x 2

    i say this in my head: five two sixty thirty two, then keep 32 in mind by remembering 3 and the number before that. then eight ten five = five. thirtyseven sixty seventy two two = 4 = 74

    how do you calculate this or can you explain it?
    More or less the same.

    2 30 (32) + 10 (5) --37, 60- 74

  2. #22
    Listening Oaky's Avatar
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    Quote Originally Posted by tinkerbell View Post
    I'd use BODMAS.....

    Boackets Off
    Divide
    Multiply
    Add
    Subtract

    Enjoy
    Ah yes, the good old BODMAS. I had learnt it also as BIDMAS 'I' being 'Indices'.

  3. #23
    Was E.laur Laurie's Avatar
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    My kids were talking about pemdas and I'm like... Nooo it's order of difficulty/order you are taught how to do the math. If I try to remember stuff with acronyms I spend the whole test trying to remember the acronym and if I happen to remember that I spend the whole time trying to remember what the letters stand for. That's if I actually disciplined myself to learn the acronym to start with.

    "order of difficulty/order you are taught how to do the math"

    Parentheses go first, obviously (you probably even learn it last since it's part of the "what order" lesson)
    Exponents go second because they are the last thing you learned in math of the group (and are "hardest")
    Division and multiplication are next, also next in line of learning/hardness scale
    Addition and subtraction you learned first so you are going to do them last.

    It's like peeling an onion, the order you learn them in is covering up the center answer so you have to peel each layer to get to the answer. You can't do addition first because multiplication and division cover that layer up.

    I apparently have issues.

    Does anyone else think like this??

  4. #24
    Senior Member FeatheredFrenzy's Avatar
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    Quote Originally Posted by Elaur View Post
    Does anyone else think like this??
    No. But it's okay.

  5. #25
    Senior Member BlueGray's Avatar
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    Quote Originally Posted by INTP View Post
    for example this: ((5-3+(6x5)) + (8+2-5)) x 2

    i say this in my head: five two sixty thirty two, then keep 32 in mind by remembering 3 and the number before that. then eight ten five = five. thirtyseven sixty seventy two two = 4 = 74

    how do you calculate this or can you explain it?
    no fives, -3 and 2 make -1 and thirty makes 29, and 40 and 18 is 58, whoops forgot 8, 58 and 16 makes 74.

    The overuse of parentheses annoyed me.

    I like Habba's line by line so here was mine
    ((5-3+(6x5)) + (8+2-5)) x 2
    -3 + (6x5) + 2
    -1 + (6X5)
    -1 + 30
    29
    29 X 2
    58
    Done
    58 + 2(8)
    74
    Now really done.
    Ne > Ti > Si >> Te > Se >> Fe > Fi > Ni
    5 so/sp
    Chaotic Neutral/Evil

  6. #26
    Senior Member Habba's Avatar
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    Quote Originally Posted by INTP View Post
    ((5-3+(6x5)) + (8+2-5)) x 2
    ((5-3+(30)) + (8+2-5)) x 2
    ((2+(30)) + (8+2-5)) x 2
    ((32) + (8+2-5)) x 2
    ((32) + (5)) x 2
    37 x 2
    30 x 2 + 7 x 2
    60 + 14
    74


    Here it is, line by line.
    "The present is theirs; the future, for which I have really worked, is mine."
    -Nikola Tesla

  7. #27

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    Quote Originally Posted by Habba View Post
    ((5-3+(30)) + (8+2-5)) x 2
    ((2+(30)) + (8+2-5)) x 2
    ((32) + (8+2-5)) x 2
    ((32) + (5)) x 2
    37 x 2
    30 x 2 + 7 x 2
    60 + 14
    74


    Here it is, line by line.
    Perfect down to the last rule.
    Freude, schöner Götterfunken Tochter aus Elysium, Wir betreten feuertrunken, Himmlische, dein Heiligtum! Deine Zauber binden wieder Was die Mode streng geteilt; Alle Menschen werden Brüder, Wo dein sanfter Flügel weilt.

  8. #28
    Reptilian Snuggletron's Avatar
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    Quote Originally Posted by whatever View Post
    look at math problem... vaguely attempt solving math problem until I realize that it's boring because I don't even know WHY I'm solving it (I beleive in story problems and story problems only)... conclude "fuck it!" and check out someone else's answer
    this is pretty close to my method except I stop trying to solve it outright in the exact moment after I see the math problem.

    Like OP's question, why would I solve that at home? mental masturbation? That's like normal masturbation with an iron claw (personally).

  9. #29
    Senior Member iamathousandapples's Avatar
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    ((5-3+(6x5)) + (8+2-5)) x 2
    ((2+30)+5)*2
    37*2
    74
    delicious.

  10. #30
    ThatGirl
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    37 * 2 by sight then I think for a sec

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