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Cornerstone · Grades 3–5 Keystones #1 21 May 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 21 May 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x + 13 = 31

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

    Calculate the hypotenuse when a = 6cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 2:1

    Answer: 30 and 15
  5. 5. Statistics Mean

    Calculate the mean of: 43, 35, 19, 40, 11, 19, 9, 16

    Answer: 24

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