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Cornerstone · Grades 3–5 Keystones #112 22 April 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 22 April 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Calculate: 2⁄12 × 2

    Answer: 1⁄3
  2. 2. Algebra Expanding single brackets

    Expand: 6(5x + 9)

    Answer: 30x + 54
  3. 3. Geometry Pythagoras — short side

    Find b if a = 11cm and c = 19cm

    Answer: 15.49cm
  4. 4. Ratio Ratio given the difference

    In ratio 6:1, the difference between shares is 145. What are the shares?

    Answer: 174 and 29
  5. 5. Statistics Range

    Find the range of: 17, 13, 20, 41, 24

    Answer: 28

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