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Cornerstone · Grades 3–5 Keystones #1 8 December 2013 Skills week 1 of 7
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Five GCSE retrieval questions · 8 December 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄10 + 1⁄10

    Answer: 3⁄5
  2. 2. Algebra Two-step equations

    Solve: 3x + 14 = 35

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

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

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

    Divide 119 in the ratio 2:3:2

    Answer: 34, 51 and 34
  5. 5. Statistics Mean

    Calculate the mean of: 11, 39, 45, 41, 18, 14, 41. Give your answer to 2 decimal places

    Answer: 29.86

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