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Cornerstone · Grades 3–5 Keystones #1 30 December 2021
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 56 + 94

    Answer: 56 + 94 = 150
  2. 2. Algebra

    Solve: x + 8 = 21

    Answer: x = 13
  3. 3. Geometry

    Opposite = 6cm, hypotenuse = 12cm. Find the angle

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

    Calculate 50% of 108

    Answer: 54
  5. 5. Statistics

    What is the probability of rolling a 1 on a fair die?

    Answer: 1⁄6

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