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Rounding - which way?

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    Hi all,

    I'm doing OCR AS Physics.

    If I do a calculation and get a decimal answer of 14.5485, I'm a bit confused how to round this to, say, 3 SF.

    My maths teacher says I should round it down to 14.5, but my Physics teacher rounds from the right, which would make it 14.6 (because the 8 takes the 4 up to 5, which rounds up to 14.6)

    Any ideas? Which one's right?


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    I've always been told 14.5 and it's the only one that makes sense.
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    (Original post by mf2004)
    I've always been told 14.5 and it's the only one that makes sense.

    Basic rule of mathematics.

    0.0485 < 0.0500

    Must be over 5 to round up, less than 5 you do not.
  4. Offline

    that's what I thought.

    Great, thanks.

  5. Offline

    (Original post by dazed&confused)
    that's what I thought.

    Great, thanks.

    You're welcome Good luck in your exams!


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