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

Five GCSE retrieval questions · 1 December 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x - 16 = 14

    Answer: x = 15
  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 54 in the ratio 1:2

    Answer: 18 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 18, 49, 41, 35, 18, 48, 44, 35

    Answer: 36

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