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Capstone · Grades 7–9 Keystones #117 27 April 2026 Skills week 4 of 7
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Keystones — Capstone

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

  1. 1. Number Dividing in standard form

    Divide: 3 × 106 ÷ 5.7 × 104

    Answer: 5.26 × 101
  2. 2. Algebra Solving non-monic quadratics

    Solve: 6x² + 11x + 3 = 0

    Answer: x = -1⁄2 or x = -1
  3. 3. Geometry SOHCAHTOA — missing angle

    Adjacent = 30cm, hypotenuse = 45cm. Find the angle

    Answer: 48.2°
  4. 4. Ratio Mixed ratio problems

    In ratio 3:2:2, what fraction is the second part?

    Answer: 2⁄7
  5. 5. Statistics Median

    Find the median of: 36, 40, 41, 63, 66, 71, 68, 39, 34

    Answer: 41

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