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Capstone · Grades 7–9 Keystones #1 15 February 2022
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Keystones — Capstone

Five GCSE retrieval questions · 15 February 2022 · mathsvault.uk/keystones

  1. 1. Number

    Simplify: √8 + √18

    Answer: 2√2 + 3√2 = 5√2
  2. 2. Algebra

    Solve: x⁄5 = 1.2

    Answer: x = 6
  3. 3. Geometry

    Adjacent = 22cm, hypotenuse = 31cm. Find the angle

    Answer: 44.8°
  4. 4. Ratio

    Simplify the ratio 4m:400cm

    Answer: 1:100
  5. 5. Statistics

    A spinner has 4 red, 6 blue and 4 green sections. Probability of landing on red?

    Answer: 2⁄7

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