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Cornerstone · Grades 3–5 Keystones #1 27 November 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 27 November 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 1⁄3

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 2x - 11 = 17

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

    Calculate the hypotenuse when a = 5cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 10.3cm
  4. 4. Ratio Sharing in a ratio

    Divide 189 in the ratio 1:2:4

    Answer: 27, 54 and 108
  5. 5. Statistics Mean

    Calculate the mean of: 20, 27, 27, 30, 11, 25, 21, 37

    Answer: 24.75

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