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Cornerstone · Grades 3–5 Keystones #1 6 July 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 6x + 8 = 26

    Answer: x = 3
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 4cm

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 1:2

    Answer: 15 and 30
  5. 5. Statistics Mean

    Calculate the mean of: 12, 9, 36, 28, 13, 19, 25

    Answer: 20.3

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