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Lintel · Grades 5–7 Keystones #1 3 February 2022
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Keystones — Lintel

Five GCSE retrieval questions · 3 February 2022 · mathsvault.uk/keystones

  1. 1. Number

    What is the missing number: 68 + ? = 147

    Answer: 79
  2. 2. Algebra

    Solve: 2x = 22

    Answer: x = 11
  3. 3. Geometry

    Adjacent = 26cm, hypotenuse = 41cm. Find the angle

    Answer: 50.6°
  4. 4. Ratio

    Simplify the ratio 8m:800cm

    Answer: 1:100
  5. 5. Statistics

    A bag has 7 red and 6 blue balls. What is the probability of picking a red ball?

    Answer: 713