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Cornerstone · Grades 3–5 Keystones #1 2 October 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 October 2022 · mathsvault.uk/keystones

  1. 1. Number

    Add: 2⁄3 + 1⁄5

    Answer: 13⁄15
  2. 2. Algebra

    Solve: 4x = 52

    Answer: x = 13
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 22cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 24:18

    Answer: 4:3
  5. 5. Statistics

    Calculate the mean of: 45, 36, 49, 39, 41, 49, 23, 24

    Answer: 38.3

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