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Cornerstone · Grades 3–5 Keystones #1 17 January 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 17 January 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄11 + 2⁄11

    Answer: 10⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x + 6 = 33

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio Sharing in a ratio

    Share 36 in the ratio 2:1

    Answer: 24 and 12
  5. 5. Statistics Mean

    Find the mean of: 10, 19, 2, 5

    Answer: 9

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