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Cornerstone · Grades 3–5 Keystones #1 30 June 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 30 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄8 + 1⁄8

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

    Solve: 3x - 8 = 19

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

    Calculate the hypotenuse when a = 10cm and b = 13cm

    Answer: 16.4cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 1:2:1

    Answer: 24, 48 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 37, 14, 26, 33, 25, 21, 27

    Answer: 26.1

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