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Cornerstone · Grades 3–5 Keystones #1 16 April 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 April 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 2⁄8 + 2⁄8

    Answer: 1⁄2
  2. 2. Algebra

    Solve: 5x = 65

    Answer: x = 13
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 10.4cm. Find the angle

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

    Calculate 10% of 104

    Answer: 10.4
  5. 5. Statistics

    Find the mean of: 16, 18, 20, 7, 10

    Answer: 14.2

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