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

  1. 1. Number Adding fractions

    Calculate: 3⁄7 + 1⁄7

    Answer: 4⁄7
  2. 2. Algebra Two-step equations

    Solve: 7x + 4 = 32

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

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Divide 150 in the ratio 1:2:2

    Answer: 30, 60 and 60
  5. 5. Statistics Mean

    Find the mean of: 10, 14, 13, 13, 20

    Answer: 14

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