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Lintel · Grades 5–7 Keystones #1 8 September 2021
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Keystones — Lintel

Five GCSE retrieval questions · 8 September 2021 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 270 + 889

    Answer: 270 + 889 = 1159
  2. 2. Algebra

    Solve: x⁄5 = 1.4

    Answer: x = 7
  3. 3. Geometry

    Calculate the area of a circle with diameter 15cm

    Answer: 176.71cm²
  4. 4. Ratio

    Simplify: 12:8:4

    Answer: 3:2:1
  5. 5. Statistics

    A spinner has 5 red, 5 blue and 6 green sections. Probability of landing on red?

    Answer: 5⁄16

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