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Capstone · Grades 7–9 Keystones #127 7 May 2026 Skills week 5 of 7
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Keystones — Capstone

Five GCSE retrieval questions · 7 May 2026 · mathsvault.uk/keystones

  1. 1. Number Index law — powers of powers

    Simplify: ((a2)2)3

    Answer: a12
  2. 2. Algebra Quadratic nth term

    Determine the nth term: 14, 26, 46, 74, ...

    Answer: 4n² + 10
  3. 3. Geometry Equation of a circle

    State the equation of a circle with centre (6, 5) and radius 7

    Answer: (x - 6)² + (y - 5)² = 49
  4. 4. Ratio Changing a ratio

    In ratio 2:1, if the second quantity is 41, what is the first?

    Answer: 82
  5. 5. Statistics Range

    Find the range of: -17, 31, 32, -12, -11

    Answer: 49

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