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Cornerstone · Grades 3–5 Keystones #1 30 November 2021 Skills week 1 of 7
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Five GCSE retrieval questions · 30 November 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 2⁄11

    Answer: 8⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x + 7 = 49

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

    Calculate the hypotenuse when a = 8cm and b = 10cm

    Answer: 12.81cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 2:1

    Answer: 28 and 14
  5. 5. Statistics Mean

    Find the mean of: 7, 11, 7

    Answer: 8.3333333333333

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