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Cornerstone · Grades 3–5 Keystones #1 15 May 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 May 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 328 + 490

    Answer: 328 + 490 = 818
  2. 2. Algebra

    Simplify: 3x + 5x

    Answer: 8x
  3. 3. Geometry

    Opposite = 18cm, adjacent = 16cm. Calculate the angle

    Answer: 48.4°
  4. 4. Ratio

    Simplify: 12:20:8

    Answer: 3:5:2
  5. 5. Statistics

    Find the mean of: 11, 3, 11, 11

    Answer: 9

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