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Cornerstone · Grades 3–5 Keystones #1 10 July 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 10 July 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄7 + 3⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 6x + 14 = 56

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 6cm

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 1:2

    Answer: 28 and 56
  5. 5. Statistics Mean

    Calculate the mean of: 30, 18, 48, 37, 26, 33, 16, 9

    Answer: 27.1

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