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Cornerstone · Grades 3–5 Keystones #175 24 June 2026 Skills week 5 of 7
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Five GCSE retrieval questions · 24 June 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: x4 × x3

    Answer: x7
  2. 2. Algebra Unknowns on both sides

    Solve: 10x - 4 = 3x + 52

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

    Convert 4 litres to ml

    Answer: 4000ml
  4. 4. Ratio Mixed ratio problems

    Simplify: 10:10:6

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

    A fair coin is flipped 192 times. How many heads would you expect?

    Answer: 96

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