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

  1. 1. Number Adding fractions

    Calculate: 6⁄12 + 2⁄12

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

    Solve: 5x - 9 = 36

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

    Calculate the hypotenuse when a = 4cm and b = 7cm

    Answer: 8.06cm
  4. 4. Ratio Sharing in a ratio

    Divide 66 in the ratio 3:1:2

    Answer: 33, 11 and 22
  5. 5. Statistics Mean

    Calculate the mean of: 21, 26, 33, 20, 11, 21, 8

    Answer: 20

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