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Cornerstone · Grades 3–5 Keystones #1 20 April 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 April 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄12 + 2⁄12

    Answer: 1⁄4
  2. 2. Algebra Two-step equations

    Solve: 5x + 13 = 28

    Answer: x = 3
  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

    Divide 252 in the ratio 1:4:4

    Answer: 28, 112 and 112
  5. 5. Statistics Mean

    Find the mean of: 17, 5, 2

    Answer: 8

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