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Cornerstone · Grades 3–5 Keystones #306 2 November 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 2 November 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Multiply: 1⁄7 × 1⁄5

    Answer: 1⁄35
  2. 2. Algebra Expanding single brackets

    Expand: 3(5x + 3)

    Answer: 15x + 9
  3. 3. Geometry Pythagoras — short side

    Find b if a = 11cm and c = 22cm

    Answer: 19.05cm
  4. 4. Ratio Ratio given the difference

    In ratio 5:4, the difference between shares is 23. What are the shares?

    Answer: 115 and 92
  5. 5. Statistics Range

    Find the range of: 31, 25, 26, 25, 19

    Answer: 12

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