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Cornerstone · Grades 3–5 Keystones #1 28 January 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 January 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 2⁄7

    Answer: 11⁄14
  2. 2. Algebra Two-step equations

    Solve: 6x + 4 = 52

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 6cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 3:2

    Answer: 18 and 12
  5. 5. Statistics Mean

    Find the mean of: 6, 8, 10, 18, 8

    Answer: 10

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