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Cornerstone · Grades 3–5 Keystones #1 15 June 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 15 June 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 6⁄9

    Answer: 8⁄9
  2. 2. Algebra Two-step equations

    Solve: 6x - 19 = 29

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Divide 108 in the ratio 2:1:1

    Answer: 54, 27 and 27
  5. 5. Statistics Mean

    Calculate the mean of: 6, 42, 33, 23, 48, 21, 44

    Answer: 31

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