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Cornerstone · Grades 3–5 Keystones #1 27 June 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 27 June 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄11 + 1⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x + 8 = 44

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

    Calculate the hypotenuse when a = 11cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 17.03cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics Mean

    Calculate the mean of: 21, 39, 41, 23, 34, 12, 38. Give your answer to 2 decimal places

    Answer: 29.71

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