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Cornerstone · Grades 3–5 Keystones #1 27 July 2024
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 July 2024 · mathsvault.uk/keystones

  1. 1. Number

    Add: 1⁄4 + 1⁄3

    Answer: 7⁄12
  2. 2. Algebra

    Simplify: 6x + 5x

    Answer: 11x
  3. 3. Geometry

    Opposite = 10cm, adjacent = 8cm. Calculate the angle

    Answer: 51.3°
  4. 4. Ratio

    Simplify: 12:12:16

    Answer: 3:3:4
  5. 5. Statistics

    A bag has 7 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 7⁄10

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