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Cornerstone · Grades 3–5 Keystones #1 1 April 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 April 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 842 + 486

    Answer: 842 + 486 = 1328
  2. 2. Algebra

    Simplify: 8x + 6x

    Answer: 14x
  3. 3. Geometry

    Opposite = 18cm, adjacent = 8cm. Calculate the angle

    Answer: 66°
  4. 4. Ratio

    Simplify: 8:8:20

    Answer: 2:2:5
  5. 5. Statistics

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

    Answer: 1⁄2

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