Hey! Sign in to get help with your study questionsNew here? Join for free to post

Rounding - which way?

Announcements Posted on
Fancy a fiver? Fill in our quick survey and we’ll send you a £5 Amazon voucher 03-05-2016
Talking about ISA/EMPA specifics is against our guidelines - read more here 28-04-2016
  1. Offline

    ReputationRep:
    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?

    Thanks!

    Ryan
  2. Offline

    ReputationRep:
    I've always been told 14.5 and it's the only one that makes sense.
  3. Offline

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

    Basic rule of mathematics.

    0.0485 < 0.0500

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

    ReputationRep:
    that's what I thought.

    Great, thanks.

    Ryan
  5. Offline

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

    Great, thanks.

    Ryan
    You're welcome Good luck in your exams!

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. Oops, you need to agree to our Ts&Cs to register
  2. Slide to join now Processing…

Updated: May 10, 2012
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

Today on TSR

iGCSE English Language

How was your exam?

Poll
How often are people with Asthma hospitalised in the UK?
Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.