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Lintel · Grades 5–7 Keystones #255 12 September 2026 Skills week 2 of 7
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Five GCSE retrieval questions · 12 September 2026 · mathsvault.uk/keystones

  1. 1. Number Mixed index laws

    Simplify: (a4)2 × a2

    Answer: a10
  2. 2. Algebra Unknowns on both sides

    Solve: 9x - 11 = 6x + 19

    Answer: x = 10
  3. 3. Geometry Distance between two points

    Find the distance between (-8, -8) and (12, 9)

    Answer: 26.25
  4. 4. Ratio Repeated percentage change

    A value of 257 increases by 10% each year for 3 years. Final value?

    Answer: 342.07
  5. 5. Statistics Median

    Find the median of: 29, 56, 46, 76, 70, 31, 24, 56, 34, 46, 26

    Answer: 46

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