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Cornerstone · Grades 3–5 Keystones #173 22 June 2026 Skills week 5 of 7
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Five GCSE retrieval questions · 22 June 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: 54 × 54

    Answer: 58
  2. 2. Algebra Unknowns on both sides

    Solve: 8x + 6 = 7x + 17

    Answer: x = 11
  3. 3. Geometry Converting mixed metric units

    Convert 9km to m

    Answer: 9000m
  4. 4. Ratio Mixed ratio problems

    In a ratio of 1:4, what fraction is the first part?

    Answer: 1⁄5
  5. 5. Statistics Expected frequency

    A fair coin is flipped 74 times. How many heads would you expect?

    Answer: 37

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