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Cornerstone · Grades 3–5 Keystones #1 28 January 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 28 January 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 4⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 5x + 15 = 60

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Share 39 in the ratio 1:2

    Answer: 13 and 26
  5. 5. Statistics Mean

    Find the mean of: 16, 3, 8, 9

    Answer: 9

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