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Cornerstone · Grades 3–5 Keystones #1 11 June 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 June 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 3⁄7

    Answer: 53⁄42
  2. 2. Algebra Two-step equations

    Solve: 2x - 16 = -4

    Answer: x = 6
  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 39 in the ratio 1:2

    Answer: 13 and 26
  5. 5. Statistics Mean

    Find the mean of: 17, 7, 10, 13, 8

    Answer: 11

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