7 Tips To Help You Pass Maths (based On GCSE Level, England) by Naomi :) - Musely
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7 Tips To Help You Pass Maths (based On GCSE Level, England)

posted in Various
06/03/2014
  • Recently I've been helping out GCSE students and have put together a few useful tips for you all :)
    Recently I've been helping out GCSE students and have put together a few useful tips for you all :)
  • With grouped data find the cumulative frequency to find the medium interval. When finding the mean of group data find the midpoint of each group and multiply it by the frequency, then use this as your total values and divide by the total frequencies
    With grouped data find the cumulative frequency to find the medium interval. When finding the mean of group data find the midpoint of each group and multiply it by the frequency, then use this as your total values and divide by the total frequencies
  • When given a question where you have an amount which is less than 100% eg
£20 is the price after being reduced by 20%, what was its original price?
100% - 20% = 80% so £20 is 80%
20/80 x 100 gives original price = £25
    When given a question where you have an amount which is less than 100% eg
    £20 is the price after being reduced by 20%, what was its original price?
    100% - 20% = 80% so £20 is 80%
    20/80 x 100 gives original price = £25
  • Follow the order of BIDMAS:
Brackets, indices, division, multiplication, add and subtract
    Follow the order of BIDMAS:
    Brackets, indices, division, multiplication, add and subtract
  • Only flip the second one
    Only flip the second one
  • Hope this helps and best of luck in your exams 👍

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