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Cornerstone · Grades 3–5 Keystones #212 31 July 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 31 July 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Calculate: 2⁄5 × 3

    Answer: 6⁄5
  2. 2. Algebra Expanding single brackets

    Expand: 3(x + 6)

    Answer: 3x + 18
  3. 3. Geometry Pythagoras — short side

    Find b if a = 6cm and c = 13cm

    Answer: 11.53cm
  4. 4. Ratio Ratio given the difference

    In ratio 5:2, the difference between shares is 63. What are the shares?

    Answer: 105 and 42
  5. 5. Statistics Range

    Find the range of: 23, 35, 6, 30, 27

    Answer: 29

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