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Capstone · Grades 7–9 Keystones #1 21 October 2025
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Keystones — Capstone

Five GCSE retrieval questions · 21 October 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 16 + 36 + 16

    Answer: 56
  2. 2. Algebra

    Solve: x8 = 3.75

    Answer: x = 30
  3. 3. Geometry

    Adjacent = 13cm, hypotenuse = 24cm. Find the angle

    Answer: 57.2°
  4. 4. Ratio

    Calculate 34% of 880

    Answer: 299.2
  5. 5. Statistics

    The mean of 4 numbers is 31. If 3 of them are 30, 39, 47, what is the missing number?

    Answer: 8