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

Five GCSE retrieval questions · 1 May 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄12 + 2⁄12

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

    Solve: 2x + 13 = 33

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 1:4

    Answer: 10 and 40
  5. 5. Statistics Mean

    Find the mean of: 9, 11, 16, 3, 1

    Answer: 8

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