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Lintel · Grades 5–7 Keystones #1 4 August 2023
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Keystones — Lintel

Five GCSE retrieval questions · 4 August 2023 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 114. What are the numbers?

    Answer: 37, 38, and 39
  2. 2. Algebra

    What is the next term? 3, 12, 48, 192, ...

    Answer: 768
  3. 3. Geometry

    Calculate the area of a circle with diameter 20cm

    Answer: 314.16cm²
  4. 4. Ratio

    Find 26% of 408

    Answer: 106.08
  5. 5. Statistics

    A bag has 3 red and 3 blue balls. What is the probability of picking a red ball?

    Answer: 12