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Cornerstone · Grades 3–5 Keystones #179 28 June 2026 Skills week 5 of 7
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Five GCSE retrieval questions · 28 June 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: 53 × 52

    Answer: 55
  2. 2. Algebra Unknowns on both sides

    Solve: 6x - 4 = 4x + 12

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

    Convert 3m to mm

    Answer: 3000mm
  4. 4. Ratio Mixed ratio problems

    Express the first part of 3:4 as a fraction in simplest form

    Answer: 3⁄7
  5. 5. Statistics Expected frequency

    A fair coin is flipped 120 times. How many heads would you expect?

    Answer: 60

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