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Cornerstone · Grades 3–5 Keystones #1 27 September 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 September 2021 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: 44 × 44

    Answer: 48
  2. 2. Algebra

    Find the next term: 18, 28, 38, 48, ...

    Answer: 58
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 11.3cm. Find the angle

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

    Simplify: 18:18:6

    Answer: 3:3:1
  5. 5. Statistics

    Find the mean of: 17, 19, 8, 10

    Answer: 13.5

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