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Cornerstone · Grades 3–5 Keystones #1 30 April 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 30 April 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 4⁄6

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

    Solve: 6x + 6 = 30

    Answer: x = 4
  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 70 in the ratio 4:3

    Answer: 40 and 30
  5. 5. Statistics Mean

    Find the mean of: 17, 20, 9, 17, 7

    Answer: 14

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