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

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

  1. 1. Number Adding fractions

    Calculate: 1⁄12 + 1⁄12

    Answer: 1⁄6
  2. 2. Algebra Two-step equations

    Solve: 4x - 18 = 22

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics Mean

    Find the mean of: 15, 2, 22

    Answer: 13

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