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Cornerstone · Grades 3–5 Keystones #1 11 November 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 November 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄6 + 1⁄3

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 2x + 6 = 22

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

    Calculate the hypotenuse when a = 3cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 2:3

    Answer: 38 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 5, 6, 14, 36, 49, 22, 45, 50. Give your answer to 2 decimal places

    Answer: 28.38

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