Get ready for #GCSEMaths with these useful formulae here from @OCR_Maths #GCSEs2018 2018 https://t.co/3Af9GezIUu pic.twitter.com/FiUSOcmFGN
— Tʜᴇ Cᴀʟᴄᴜʟᴀᴛᴏʀ Gᴜɪᴅᴇ (@GuideCalculator) June 6, 2018
from Twitter https://twitter.com/GuideCalculator
June 06, 2018 at 03:35PM
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