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Cornerstone · Grades 3–5 Keystones #1 9 May 2023
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 May 2023 · mathsvault.uk/keystones

  1. 1. Number

    97000

    Answer: 9.7 × 104
  2. 2. Algebra

    Solve: 6x = 72

    Answer: x = 12
  3. 3. Geometry

    Opposite = 14cm, adjacent = 11cm. Calculate the angle

    Answer: 51.8°
  4. 4. Ratio

    Find 54% of 312

    Answer: 168.48
  5. 5. Statistics

    Calculate the mean of: 38, 38, 23, 41, 19, 15, 30, 15

    Answer: 27.4

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