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Cornerstone · Grades 3–5 Keystones #1 1 June 2010 Skills week 1 of 7
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Five GCSE retrieval questions · 1 June 2010 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 2⁄9

    Answer: 4⁄9
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 25

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

    Calculate the hypotenuse when a = 6cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 4:3

    Answer: 40 and 30
  5. 5. Statistics Mean

    Calculate the mean of: 27, 18, 26, 38, 16, 9. Give your answer to 2 decimal places

    Answer: 22.33

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