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Lintel · Grades 5–7 Keystones #1 24 October 2022
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Keystones — Lintel

Five GCSE retrieval questions · 24 October 2022 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: x7 × x2

    Answer: x9
  2. 2. Algebra

    Solve: x3 = 8

    Answer: x = 24
  3. 3. Geometry

    Adjacent = 18cm, hypotenuse = 28cm. Find the angle

    Answer: 50°
  4. 4. Ratio

    Simplify: 4:10:8

    Answer: 2:5:4
  5. 5. Statistics

    A bag has 3 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 310