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Cornerstone · Grades 3–5 Keystones #309 5 November 2026 Skills week 3 of 7
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Five GCSE retrieval questions · 5 November 2026 · mathsvault.uk/keystones

  1. 1. Number Multiplying fractions

    Multiply: 2⁄3 × 5⁄6

    Answer: 5⁄9
  2. 2. Algebra Expanding single brackets

    Expand: 4(2x + 7)

    Answer: 8x + 28
  3. 3. Geometry Pythagoras — short side

    Find b if a = 14cm and c = 17cm

    Answer: 9.64cm
  4. 4. Ratio Ratio given the difference

    A and B share in ratio 2:1. If the difference is 60, what does A get?

    Answer: 120
  5. 5. Statistics Range

    Calculate the range of: 64, 63, 95, 23, 44, 23

    Answer: 72

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