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Cornerstone · Grades 3–5 Keystones #27 27 January 2026 Skills week 5 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 January 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: x6 × x6

    Answer: x12
  2. 2. Algebra Unknowns on both sides

    Solve: 6x + 4 = 2x + 24

    Answer: x = 5
  3. 3. Geometry Converting mixed metric units

    Convert 7837ml to litres

    Answer: 7.837 litres
  4. 4. Ratio Mixed ratio problems

    Express the first part of 4:6 as a fraction in simplest form

    Answer: 2⁄5
  5. 5. Statistics Expected frequency

    A die is rolled 36 times. How many times would you expect to get a 6?

    Answer: 6

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