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Cornerstone · Grades 3–5 Keystones #1 9 April 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 9 April 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄9 + 5⁄9

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

    Solve: 3x + 11 = 32

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Share 80 in the ratio 1:3

    Answer: 20 and 60
  5. 5. Statistics Mean

    Calculate the mean of: 44, 31, 44, 38, 31, 24. Give your answer to 2 decimal places

    Answer: 35.33

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