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Cornerstone · Grades 3–5 Keystones #176 25 June 2026 Skills week 5 of 7
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Five GCSE retrieval questions · 25 June 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: 64 × 64

    Answer: 68
  2. 2. Algebra Unknowns on both sides

    Solve: 8x + 9 = 6x + 15

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

    Convert 8752ml to litres

    Answer: 8.752 litres
  4. 4. Ratio Mixed ratio problems

    Express the first part of 6:3 as a fraction in simplest form

    Answer: 2⁄3
  5. 5. Statistics Expected frequency

    A die is rolled 66 times. How many times would you expect to get a 6?

    Answer: 11

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