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Cornerstone · Grades 3–5 Keystones #1 25 August 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 25 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 3⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 5x + 9 = 29

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 6cm

    Answer: 6.71cm
  4. 4. Ratio Sharing in a ratio

    Share 78 in the ratio 1:2

    Answer: 26 and 52
  5. 5. Statistics Mean

    Calculate the mean of: 7, 46, 15, 48, 18, 17, 26, 14

    Answer: 23.9

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