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Lintel · Grades 5–7 Keystones #1 18 April 2023
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Keystones — Lintel

Five GCSE retrieval questions · 18 April 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 572 + 472

    Answer: 572 + 472 = 1044
  2. 2. Algebra

    Simplify: 8x - 6x + 4y - 2y

    Answer: 2x + 2y
  3. 3. Geometry

    Opposite = 19cm, adjacent = 11cm. Calculate the angle

    Answer: 59.9°
  4. 4. Ratio

    Simplify: 18:15:9

    Answer: 6:5:3
  5. 5. Statistics

    A bag has 3 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 13