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Cornerstone · Grades 3–5 Keystones #1 19 April 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 19 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄7 + 2⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 4x - 17 = 35

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 85 in the ratio 2:3

    Answer: 34 and 51
  5. 5. Statistics Mean

    Find the mean of: 9, 6, 9, 15, 6

    Answer: 9

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