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Cornerstone · Grades 3–5 Keystones #1 29 October 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 29 October 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 2⁄11

    Answer: 5⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x - 16 = 68

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 8.06cm
  4. 4. Ratio Sharing in a ratio

    Divide 130 in the ratio 3:4:3

    Answer: 39, 52 and 39
  5. 5. Statistics Mean

    Calculate the mean of: 30, 33, 7, 6, 15, 40. Give your answer to 2 decimal places

    Answer: 21.83

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