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Cornerstone · Grades 3–5 Keystones #113 23 April 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 23 April 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Multiply: 4⁄5 × 2⁄6

    Answer: 4⁄15
  2. 2. Algebra Expanding single brackets

    Expand: 6(x + 3)

    Answer: 6x + 18
  3. 3. Geometry Pythagoras — short side

    Find b if a = 15cm and c = 25cm

    Answer: 20cm
  4. 4. Ratio Ratio given the difference

    In ratio 7:4, the difference between shares is 87. What are the shares?

    Answer: 203 and 116
  5. 5. Statistics Range

    Calculate the range of: 85, 55, 85, 32, 64, 41

    Answer: 53

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