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Cornerstone · Grades 3–5 Keystones #1 15 December 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 December 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 49 + 63

    Answer: 49 + 63 = 112
  2. 2. Algebra

    Collect like terms: 3x + 8y + 6x + 6y

    Answer: 9x + 14y
  3. 3. Geometry

    Calculate the area of a right triangle with perpendicular sides 8cm and 12cm

    Answer: 48cm²
  4. 4. Ratio

    Calculate 50% of 189

    Answer: 94.5
  5. 5. Statistics

    What is the probability of getting heads when flipping a fair coin?

    Answer: 1⁄2

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