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Cornerstone · Grades 3–5 Keystones #1 29 August 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 29 August 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 5x - 14 = 61

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 85 in the ratio 1:2:2

    Answer: 17, 34 and 34
  5. 5. Statistics Mean

    Find the mean of: 8, 9, 10

    Answer: 9

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