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Cornerstone · Grades 3–5 Keystones #1 25 April 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 25 April 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄10 + 5⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 2x + 14 = 36

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 13.04cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 1:2

    Answer: 20 and 40
  5. 5. Statistics Mean

    Find the mean of: 9, 3, 16, 9, 18

    Answer: 11

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