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Cornerstone · Grades 3–5 Keystones #1 23 June 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 June 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄7 + 4⁄7

    Answer: 5⁄7
  2. 2. Algebra Two-step equations

    Solve: 3x + 8 = 44

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Divide 207 in the ratio 3:2:4

    Answer: 69, 46 and 92
  5. 5. Statistics Mean

    Find the mean of: 9, 5, 4, 9, 13

    Answer: 8

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