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Cornerstone · Grades 3–5 Keystones #1 14 November 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 14 November 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄12 + 4⁄12

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

    Solve: 6x + 12 = 48

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 10cm

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Share 68 in the ratio 3:1

    Answer: 51 and 17
  5. 5. Statistics Mean

    Find the mean of: 19, 18, 11

    Answer: 16

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