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Capstone · Grades 7–9 Keystones #74 15 March 2026 Skills week 4 of 7
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Five GCSE retrieval questions · 15 March 2026 · mathsvault.uk/keystones

  1. 1. Number Dividing in standard form

    Divide: 4 × 108 ÷ 8 × 105

    Answer: 5 × 102
  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 = 28cm, hypotenuse = 36cm. Find the angle

    Answer: 38.9°
  4. 4. Ratio Mixed ratio problems

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics Median

    Find the median of: 44, 64, 69, 46, 65, 65, 59, 68, 69, 55, 62

    Answer: 64

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