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Cornerstone · Grades 3–5 Keystones #1 9 June 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 June 2021 · mathsvault.uk/keystones

  1. 1. Number

    13000

    Answer: 1.3 × 104
  2. 2. Algebra

    Solve: 2x = 16

    Answer: x = 8
  3. 3. Geometry

    Opposite = 10cm, adjacent = 18cm. Calculate the angle

    Answer: 29.1°
  4. 4. Ratio

    Find 67% of 257

    Answer: 172.19
  5. 5. Statistics

    Find the mean of: 6, 4, 17, 8, 10

    Answer: 9

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