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Cornerstone · Grades 3–5 Keystones #224 12 August 2026 Skills week 5 of 7
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Five GCSE retrieval questions · 12 August 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: x8 × x2

    Answer: x10
  2. 2. Algebra Unknowns on both sides

    Solve: 7x + 4 = x + 52

    Answer: x = 8
  3. 3. Geometry Converting mixed metric units

    Convert 4786ml to litres

    Answer: 4.786 litres
  4. 4. Ratio Mixed ratio problems

    In a ratio of 5:2, what fraction is the first part?

    Answer: 5⁄7
  5. 5. Statistics Expected frequency

    A die is rolled 84 times. How many times would you expect to get a 6?

    Answer: 14

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