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Cornerstone · Grades 3–5 Keystones #1 9 April 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 April 2021 · mathsvault.uk/keystones

  1. 1. Number

    Add: 3⁄4 + 1⁄5

    Answer: 19⁄20
  2. 2. Algebra

    Solve: x + 6 = 13

    Answer: x = 7
  3. 3. Geometry

    Opposite = 5cm, hypotenuse = 7.cm. Find the angle

    Answer: 45° (approximately)
  4. 4. Ratio

    Find 16% of 85

    Answer: 13.6
  5. 5. Statistics

    What is the probability of rolling a 2 on a fair die?

    Answer: 1⁄6

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