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Capstone · Grades 7–9 Keystones #222 10 August 2026 Skills week 5 of 7
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Keystones — Capstone

Five GCSE retrieval questions · 10 August 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — powers of powers

    Simplify: ((a3)2)3

    Answer: a18
  2. 2. Algebra Quadratic nth term

    Determine the nth term: 13, 22, 37, 58, ...

    Answer: 3n² + 10
  3. 3. Geometry Equation of a circle

    State the equation of a circle with centre (5, 6) and radius 6

    Answer: (x - 5)² + (y - 6)² = 36
  4. 4. Ratio Changing a ratio

    In ratio 3:5, if the second quantity is 44, what is the first?

    Answer: 26.4
  5. 5. Statistics Range

    Find the range of: -15, 0, -27, 34, 6

    Answer: 61

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