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Capstone · Grades 7–9 Keystones #72 13 March 2026 Skills week 4 of 7
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Keystones — Capstone

Five GCSE retrieval questions · 13 March 2026 · mathsvault.uk/keystones

  1. 1. Number Dividing in standard form

    Divide: 2.8 × 106 ÷ 5.3 × 105

    Answer: 5.28 × 100
  2. 2. Algebra Solving non-monic quadratics

    Solve: 2x² + 6x + 4 = 0

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

    Adjacent = 15cm, hypotenuse = 20cm. Find the angle

    Answer: 41.4°
  4. 4. Ratio Mixed ratio problems

    £288.00 is shared between A and B in the ratio 5:4. How much does A receive?

    Answer: £160.00
  5. 5. Statistics Median

    Find the median of: 46, 31, 65, 45, 75, 34, 31, 31, 57

    Answer: 45

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