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Lintel · Grades 5–7 Keystones #1 9 December 2022
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Keystones — Lintel

Five GCSE retrieval questions · 9 December 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 36 + 34 + 14

    Answer: 32
  2. 2. Algebra

    Solve: x3 = 6.6666666666667

    Answer: x = 20
  3. 3. Geometry

    Calculate the area of a circle with diameter 15cm

    Answer: 176.71cm²
  4. 4. Ratio

    Simplify: 15:18:15

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

    A bag has 8 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 23