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Lintel · Grades 5–7 Keystones #1 27 February 2022
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Keystones — Lintel

Five GCSE retrieval questions · 27 February 2022 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 399 + 734

    Answer: 399 + 734 = 1133
  2. 2. Algebra

    Solve: 8x = 24

    Answer: x = 3
  3. 3. Geometry

    Calculate the hypotenuse when a = 5cm and b = 5cm

    Answer: 7.07cm
  4. 4. Ratio

    Simplify: 20:12:12

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

    A bag has 4 red and 7 blue balls. What is the probability of picking a red ball?

    Answer: 411