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Cornerstone · Grades 3–5 Keystones #1 22 February 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 22 February 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 4⁄6

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

    Solve: 4x + 4 = 40

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Divide 60 in the ratio 4:1:1

    Answer: 40, 10 and 10
  5. 5. Statistics Mean

    Calculate the mean of: 39, 35, 29, 39, 25, 38, 42. Give your answer to 2 decimal places

    Answer: 35.29

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