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Lintel · Grades 5–7 Keystones #1 14 October 2021
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Keystones — Lintel

Five GCSE retrieval questions · 14 October 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 997 + 525

    Answer: 1522
  2. 2. Algebra

    What is the next term? 3, 6, 12, 24, ...

    Answer: 48
  3. 3. Geometry

    Opposite = 13cm, adjacent = 16cm. Calculate the angle

    Answer: 39.1°
  4. 4. Ratio

    Simplify: 20:24:20

    Answer: 5:6:5
  5. 5. Statistics

    A bag has 8 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 12