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Lintel · Grades 5–7 Keystones #1 2 April 2023
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Keystones — Lintel

Five GCSE retrieval questions · 2 April 2023 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 93. What are the numbers?

    Answer: 30, 31, and 32
  2. 2. Algebra

    Solve: x2 = 13.5

    Answer: x = 27
  3. 3. Geometry

    Opposite = 17cm, adjacent = 16cm. Calculate the angle

    Answer: 46.7°
  4. 4. Ratio

    Simplify: 12:6:9

    Answer: 4:2:3
  5. 5. Statistics

    A bag has 4 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 12