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Bedrock · Grades 1–3 Keystones #1 20 August 2021
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Keystones — Bedrock

Five GCSE retrieval questions · 20 August 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 2⁄9 + 5⁄9

    Answer: 7⁄9
  2. 2. Algebra

    Factorise: 21x + 18

    Answer: 3(7x + 6)
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 15.6cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Simplify the ratio 9:24

    Answer: 3:8
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 1⁄2

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