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Cornerstone · Grades 3–5 Keystones #1 13 April 2013 Skills week 1 of 7
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Five GCSE retrieval questions · 13 April 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 5x - 19 = 31

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 18.44cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics Mean

    Calculate the mean of: 24, 44, 36, 19, 40, 25. Give your answer to 2 decimal places

    Answer: 31.33

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