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Cornerstone · Grades 3–5 Keystones #1 7 June 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 7 June 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 1⁄5

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

    Solve: 5x + 8 = 38

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 4:1

    Answer: 36 and 9
  5. 5. Statistics Mean

    Find the mean of: 8, 8, 8

    Answer: 8

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