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Lintel · Grades 5–7 Keystones #11 11 January 2026 Skills week 2 of 7
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Five GCSE retrieval questions · 11 January 2026 · mathsvault.uk/keystones

  1. 1. Number Mixed index laws

    Simplify: y5 × (y4)3 ÷ y2

    Answer: y15
  2. 2. Algebra Unknowns on both sides

    Solve: 8x + 12 = 6x - 3

    Answer: x = 7.5
  3. 3. Geometry Distance between two points

    Calculate the distance between (8, 3) and (11, 7)

    Answer: 5
  4. 4. Ratio Repeated percentage change

    A value of 389 increases by 9% each year for 3 years. Final value?

    Answer: 503.77
  5. 5. Statistics Median

    Calculate the median of: 40, 23, 36, 19, 34, 15

    Answer: 28.5

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