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Cornerstone · Grades 3–5 Keystones #1 27 May 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 27 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄11 + 1⁄11

    Answer: 5⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x + 13 = 73

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 25 in the ratio 1:4

    Answer: 5 and 20
  5. 5. Statistics Mean

    Calculate the mean of: 30, 27, 7, 28, 43, 13, 37

    Answer: 26.4

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