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Cornerstone · Grades 3–5 Keystones #1 12 August 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 12 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄8 + 1⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 2x - 12 = 16

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 4cm

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Share 85 in the ratio 3:2

    Answer: 51 and 34
  5. 5. Statistics Mean

    Calculate the mean of: 35, 12, 14, 16, 19, 43

    Answer: 23.2

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