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Capstone · Grades 7–9 Keystones #1 7 April 2023
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Keystones — Capstone

Five GCSE retrieval questions · 7 April 2023 · 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: x4 = 2.25

    Answer: x = 9
  3. 3. Geometry

    A right triangle has hypotenuse 10cm and one side 6cm. Find its area

    Answer: 24cm²
  4. 4. Ratio

    Calculate 31.4% of 252

    Answer: 79.13
  5. 5. Statistics

    A spinner has 4 red, 6 blue and 3 green sections. Probability of landing on red?

    Answer: 413