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Lintel · Grades 5–7 Keystones #1 11 June 2023
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Keystones — Lintel

Five GCSE retrieval questions · 11 June 2023 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 135. What are the numbers?

    Answer: 44, 45, and 46
  2. 2. Algebra

    Solve: x2 = 5

    Answer: x = 10
  3. 3. Geometry

    Opposite = 10cm, adjacent = 20cm. Calculate the angle

    Answer: 26.6°
  4. 4. Ratio

    Simplify the ratio 2m:200cm

    Answer: 1:100
  5. 5. Statistics

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

    Answer: 12