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Lintel · Grades 5–7 Keystones #299 26 October 2026 Skills week 2 of 7
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Five GCSE retrieval questions · 26 October 2026 · mathsvault.uk/keystones

  1. 1. Number Mixed index laws

    Simplify: y3 × (y2)3 ÷ y1

    Answer: y8
  2. 2. Algebra Unknowns on both sides

    Solve: 6x + 10 = 5x - 6

    Answer: x = 16
  3. 3. Geometry Distance between two points

    Find the distance between (-1, -7) and (9, 10)

    Answer: 19.72
  4. 4. Ratio Repeated percentage change

    A car worth £19,932.00 depreciates by 14% each year for 5 years. What is it worth after 5 years?

    Answer: £9,376.55
  5. 5. Statistics Median

    Calculate the median of: 29, 25, 17, 18, 12, 22

    Answer: 20

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