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Lintel · Grades 5–7 Keystones #1 12 May 2025
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Keystones — Lintel

Five GCSE retrieval questions · 12 May 2025 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 1⁄2 + 2⁄4 + 2⁄5

    Answer: 7⁄5
  2. 2. Algebra

    Solve: 5x - 12 = 2x + 6

    Answer: x = 6
  3. 3. Geometry

    Opposite = 20cm, adjacent = 15cm. Calculate the angle

    Answer: 53.1°
  4. 4. Ratio

    Simplify: 12:8:8

    Answer: 3:2:2
  5. 5. Statistics

    A bag has 7 red and 8 blue balls. What is the probability of picking a red ball?

    Answer: 7⁄15

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