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Cornerstone · Grades 3–5 Keystones #1 28 June 2012 Skills week 1 of 7
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Five GCSE retrieval questions · 28 June 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄10 + 3⁄10

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 7x - 18 = 10

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

    Calculate the hypotenuse when a = 6cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 57 in the ratio 1:2

    Answer: 19 and 38
  5. 5. Statistics Mean

    Calculate the mean of: 27, 12, 13, 40, 33, 44. Give your answer to 2 decimal places

    Answer: 28.17

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