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

Five GCSE retrieval questions · 1 December 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 99 + 52

    Answer: 99 + 52 = 151
  2. 2. Algebra

    Simplify: 8x + 2x

    Answer: 10x
  3. 3. Geometry

    Opposite = 11cm, hypotenuse = 22cm. Find the angle

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

    Simplify the ratio 14:16

    Answer: 7:8
  5. 5. Statistics

    A bag has 6 red and 5 blue balls. What is the probability of picking a red ball?

    Answer: 6⁄11

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