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Cornerstone · Grades 3–5 Keystones #1 22 July 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 22 July 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 2x - 5 = 19

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 1:2

    Answer: 28 and 56
  5. 5. Statistics Mean

    Calculate the mean of: 37, 28, 22, 26, 17, 22, 39. Give your answer to 2 decimal places

    Answer: 27.29

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