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Cornerstone · Grades 3–5 Keystones #1 30 November 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 30 November 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄11 + 5⁄11

    Answer: 6⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x + 3 = 31

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 14.56cm
  4. 4. Ratio Sharing in a ratio

    Divide 108 in the ratio 1:1:4

    Answer: 18, 18 and 72
  5. 5. Statistics Mean

    Find the mean of: 11, 4, 21

    Answer: 12

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