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Cornerstone · Grades 3–5 Keystones #261 18 September 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 18 September 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Multiply: 5⁄5 × 2⁄4

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

    Expand: 2(x + 4)

    Answer: 2x + 8
  3. 3. Geometry Pythagoras — short side

    Find b if a = 13cm and c = 19cm

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

    In ratio 7:2, the difference between shares is 130. What are the shares?

    Answer: 182 and 52
  5. 5. Statistics Range

    Calculate the range of: 102, 61, 91, 57, 76, 45

    Answer: 57

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