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Cornerstone · Grades 3–5 Keystones #1 29 March 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 29 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄7 + 2⁄4

    Answer: 19⁄14
  2. 2. Algebra Two-step equations

    Solve: 5x - 12 = 58

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 168 in the ratio 4:1:2

    Answer: 96, 24 and 48
  5. 5. Statistics Mean

    Find the mean of: 10, 13, 17, 12

    Answer: 13

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