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Cornerstone · Grades 3–5 Keystones #1 20 August 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 August 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄11 + 6⁄11

    Answer: 10⁄11
  2. 2. Algebra Two-step equations

    Solve: 4x + 6 = 34

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 19.21cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 3:4

    Answer: 15 and 20
  5. 5. Statistics Mean

    Find the mean of: 4, 4, 7

    Answer: 5

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