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Cornerstone · Grades 3–5 Keystones #165 14 June 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 14 June 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Multiply: 4⁄3 × 3⁄8

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

    Expand: 9(x + 9)

    Answer: 9x + 81
  3. 3. Geometry Pythagoras — short side

    Find b if a = 8cm and c = 16cm

    Answer: 13.86cm
  4. 4. Ratio Ratio given the difference

    In ratio 3:2, the difference between shares is 15. What are the shares?

    Answer: 45 and 30
  5. 5. Statistics Range

    Calculate the range of: 28, 42, 45, 75, 71, 80

    Answer: 52

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