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Cornerstone · Grades 3–5 Keystones #1 16 October 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 October 2022 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 34 + ? = 100

    Answer: 66
  2. 2. Algebra

    Solve: 8x + 3 = 7x + 11

    Answer: x = 8
  3. 3. Geometry

    Opposite = 8cm, adjacent = 12cm. Calculate the angle

    Answer: 33.7°
  4. 4. Ratio

    Calculate 25% of 189

    Answer: 47.25
  5. 5. Statistics

    What is the probability of rolling a 6 on a fair die?

    Answer: 1⁄6

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