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Cornerstone · Grades 3–5 Keystones #262 19 September 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 19 September 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Calculate: 2⁄7 × 3

    Answer: 6⁄7
  2. 2. Algebra Expanding single brackets

    Expand: 5(5x + 5)

    Answer: 25x + 25
  3. 3. Geometry Pythagoras — short side

    Find b if a = 8cm and c = 11cm

    Answer: 7.55cm
  4. 4. Ratio Ratio given the difference

    In ratio 2:1, the difference between shares is 58. What are the shares?

    Answer: 116 and 58
  5. 5. Statistics Range

    Find the range of: 33, 27, 16, 29, 31

    Answer: 17

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