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Cornerstone · Grades 3–5 Keystones #1 31 May 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 31 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄11 + 1⁄11

    Answer: 8⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x + 14 = 86

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 13cm

    Answer: 17.69cm
  4. 4. Ratio Sharing in a ratio

    Share 72 in the ratio 2:1

    Answer: 48 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 38, 31, 12, 8, 14, 6

    Answer: 18.2

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