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Cornerstone · Grades 3–5 Keystones #1 24 September 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 24 September 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 412 + 112

    Answer: 512
  2. 2. Algebra

    Find the next term: 6, 12, 18, 24, ...

    Answer: 30
  3. 3. Geometry

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio

    Calculate 10% of 40

    Answer: 4
  5. 5. Statistics

    Calculate the mean of: 32, 23, 26, 9, 39, 16, 35, 13

    Answer: 24.1