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Bedrock · Grades 1–3 Keystones #1 14 December 2022
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Keystones — Bedrock

Five GCSE retrieval questions · 14 December 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 40 + 38

    Answer: 40 + 38 = 78
  2. 2. Algebra

    Factorise: 15x + 25

    Answer: 5(3x + 5)
  3. 3. Geometry

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

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

    Simplify the ratio 40:25

    Answer: 8:5
  5. 5. Statistics

    What is the probability of rolling a 5 on a fair die?

    Answer: 16