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Cornerstone · Grades 3–5 Keystones #210 29 July 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 29 July 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Multiply: 3⁄7 × 5⁄7

    Answer: 15⁄49
  2. 2. Algebra Expanding single brackets

    Expand: 2(2x + 6)

    Answer: 4x + 12
  3. 3. Geometry Pythagoras — short side

    Find b if a = 9cm and c = 13cm

    Answer: 9.38cm
  4. 4. Ratio Ratio given the difference

    In ratio 4:3, the difference between shares is 26. What are the shares?

    Answer: 104 and 78
  5. 5. Statistics Range

    Calculate the range of: 121, 98, 114, 90, 46, 74

    Answer: 75

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