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Lintel · Grades 5–7 Keystones #1 13 December 2021
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Keystones — Lintel

Five GCSE retrieval questions · 13 December 2021 · mathsvault.uk/keystones

  1. 1. Number

    The sum of three consecutive numbers is 105. What are the numbers?

    Answer: 34, 35, and 36
  2. 2. Algebra

    Solve: x2 = 20

    Answer: x = 40
  3. 3. Geometry

    Adjacent = 17cm, hypotenuse = 36cm. Find the angle

    Answer: 61.8°
  4. 4. Ratio

    Simplify the ratio 3m:300cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 2 red, 2 blue and 4 green sections. Probability of landing on red?

    Answer: 14