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Cornerstone · Grades 3–5 Keystones #174 23 June 2026 Skills week 5 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 June 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — multiplication

    Simplify: x6 × x2

    Answer: x8
  2. 2. Algebra Unknowns on both sides

    Solve: 10x - 11 = 7x + 13

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

    Convert 4m to cm

    Answer: 400cm
  4. 4. Ratio Mixed ratio problems

    Share 25 in the ratio 3:2

    Answer: 15 and 10
  5. 5. Statistics Expected frequency

    A die is rolled 90 times. How many times would you expect to get a 6?

    Answer: 15

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