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Cornerstone · Grades 3–5 Keystones #1 10 March 2022
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 March 2022 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: x4 × x4

    Answer: x8
  2. 2. Algebra

    Expand: 2(5x + 6)

    Answer: 10x + 12
  3. 3. Geometry

    Opposite = 9cm, hypotenuse = 18cm. Find the angle

    Answer: 30° (approximately)
  4. 4. Ratio

    Simplify the ratio 8:12

    Answer: 2:3
  5. 5. Statistics

    What is the probability of rolling a 3 on a fair die?

    Answer: 1⁄6

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