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Cornerstone · Grades 3–5 Keystones #1 27 August 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 27 August 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄7 + 1⁄7

    Answer: 3⁄7
  2. 2. Algebra Two-step equations

    Solve: 6x - 14 = 58

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

    Calculate the hypotenuse when a = 3cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Divide 91 in the ratio 3:2:2

    Answer: 39, 26 and 26
  5. 5. Statistics Mean

    Calculate the mean of: 10, 14, 19, 39, 20, 13, 13, 22

    Answer: 18.75

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