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Lintel · Grades 5–7 Keystones #56 25 February 2026 Skills week 2 of 7
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Five GCSE retrieval questions · 25 February 2026 · mathsvault.uk/keystones

  1. 1. Number Mixed index laws

    Simplify: (a3)3 × a2

    Answer: a11
  2. 2. Algebra Unknowns on both sides

    Solve: 7x - 5 = 4x + 10

    Answer: x = 5
  3. 3. Geometry Distance between two points

    Calculate the distance between (8, 9) and (11, 13)

    Answer: 5
  4. 4. Ratio Repeated percentage change

    A car worth £16,777.00 depreciates by 12% each year for 3 years. What is it worth after 3 years?

    Answer: £11,433.06
  5. 5. Statistics Median

    Calculate the median of: 30, 30, 33, 39, 33, 23

    Answer: 31.5

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