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Cornerstone · Grades 3–5 Keystones #1 11 December 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 11 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄11 + 1⁄11

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

    Solve: 6x - 9 = 75

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

    Calculate the hypotenuse when a = 10cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 17.2cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 1:4

    Answer: 7 and 28
  5. 5. Statistics Mean

    Find the mean of: 11, 11, 24, 6

    Answer: 13

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