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Capstone · Grades 7–9 Keystones #178 27 June 2026 Skills week 5 of 7
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Keystones — Capstone

Five GCSE retrieval questions · 27 June 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — powers of powers

    Simplify: ((a4)3)2

    Answer: a24
  2. 2. Algebra Quadratic nth term

    Determine the nth term: 11, 23, 43, 71, ...

    Answer: 4n² + 7
  3. 3. Geometry Equation of a circle

    State the equation of a circle with centre (6, 8) and radius 6

    Answer: (x - 6)² + (y - 8)² = 36
  4. 4. Ratio Changing a ratio

    In ratio 5:2, if the second quantity is 42, what is the first?

    Answer: 105
  5. 5. Statistics Range

    Find the range of: -4, -28, 13, 32, 5

    Answer: 60

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