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Cornerstone · Grades 3–5 Keystones #1 29 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 29 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 2⁄11

    Answer: 5⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x - 20 = 34

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 10cm

    Answer: 11.18cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 4:1

    Answer: 28 and 7
  5. 5. Statistics Mean

    Calculate the mean of: 11, 15, 47, 6, 22, 29

    Answer: 21.7

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