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Capstone · Grades 7–9 Keystones #36 5 February 2026
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Keystones — Capstone

Five GCSE retrieval questions · 5 February 2026 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 46 + 25 + 35

    Answer: 53
  2. 2. Algebra

    Solve: x2 = 14

    Answer: x = 28
  3. 3. Geometry

    Adjacent = 27cm, hypotenuse = 42cm. Find the angle

    Answer: 50°
  4. 4. Ratio

    Simplify the ratio 2m:200cm

    Answer: 1:100
  5. 5. Statistics

    The mean of 6 numbers is 25. If 5 of them are 38, 30, 25, 50, 19, what is the missing number?

    Answer: -12