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Cornerstone · Grades 3–5 Keystones #1 14 February 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 14 February 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄11 + 1⁄11

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

    Solve: 6x + 12 = 36

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

    Calculate the hypotenuse when a = 6cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 1:2

    Answer: 20 and 40
  5. 5. Statistics Mean

    Calculate the mean of: 11, 31, 49, 16, 35, 16, 26. Give your answer to 2 decimal places

    Answer: 26.29

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