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Cornerstone · Grades 3–5 Keystones #1 15 August 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 15 August 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄11 + 2⁄11

    Answer: 6⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x - 15 = 51

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.87cm
  4. 4. Ratio Sharing in a ratio

    Share 133 in the ratio 4:3

    Answer: 76 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 28, 34, 6, 25, 32, 14. Give your answer to 2 decimal places

    Answer: 23.17

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