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Cornerstone · Grades 3–5 Keystones #1 16 October 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 16 October 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄9 + 3⁄9

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

    Solve: 7x + 4 = 60

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 14.76cm
  4. 4. Ratio Sharing in a ratio

    Share 25 in the ratio 3:2

    Answer: 15 and 10
  5. 5. Statistics Mean

    Find the mean of: 7, 15, 15, 10, 3

    Answer: 10

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