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Lintel · Grades 5–7 Keystones #24 9 July 2026
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Keystones — Lintel

Five GCSE retrieval questions · 9 July 2026 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 64 + ? = 177

    Answer: 113
  2. 2. Algebra

    Solve: 6x = 42

    Answer: x = 7
  3. 3. Geometry

    Adjacent = 18cm, hypotenuse = 27cm. Find the angle

    Answer: 48.2°
  4. 4. Ratio

    Simplify the ratio 7m:700cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 5 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 511