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Cornerstone · Grades 3–5 Keystones #1 14 November 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 November 2021 · mathsvault.uk/keystones

  1. 1. Number

    60000

    Answer: 6 × 104
  2. 2. Algebra

    Simplify: 7x + 2x

    Answer: 9x
  3. 3. Geometry

    Opposite = 13cm, hypotenuse = 15cm. Find the angle

    Answer: 60° (approximately)
  4. 4. Ratio

    Simplify the ratio 8:12

    Answer: 2:3
  5. 5. Statistics

    Find the range of: 36, 28, 19, 30, 39

    Answer: 20

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