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Cornerstone · Grades 3–5 Keystones #18 3 July 2026
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 July 2026 · mathsvault.uk/keystones

  1. 1. Number

    Find the total of 158, 141, and 136

    Answer: 435
  2. 2. Algebra

    Find the next term: 25, 34, 43, 52, ...

    Answer: 61
  3. 3. Geometry

    Opposite = 13cm, adjacent = 18cm. Calculate the angle

    Answer: 35.8°
  4. 4. Ratio

    Simplify: 18:15:18

    Answer: 6:5:6
  5. 5. Statistics

    What is the probability of rolling a 3 on a fair die?

    Answer: 16