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Cornerstone · Grades 3–5 Keystones #1 28 October 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 October 2023 · mathsvault.uk/keystones

  1. 1. Number

    Add: 1⁄3 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra

    Solve: x + 6 = 26

    Answer: x = 20
  3. 3. Geometry

    Opposite = 8cm, hypotenuse = 9.2cm. Find the angle

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

    Simplify: 8:4:12

    Answer: 2:1:3
  5. 5. Statistics

    Find the mean of: 16, 3, 9

    Answer: 9.3333333333333

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