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Cornerstone · Grades 3–5 Keystones #1 23 June 2021 Skills week 1 of 7
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Five GCSE retrieval questions · 23 June 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄11 + 2⁄11

    Answer: 10⁄11
  2. 2. Algebra Two-step equations

    Solve: 4x + 4 = 32

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

    Calculate the hypotenuse when a = 12cm and b = 14cm

    Answer: 18.44cm
  4. 4. Ratio Sharing in a ratio

    Divide 152 in the ratio 3:2:3

    Answer: 57, 38 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 18, 38, 8, 27, 48, 6, 16

    Answer: 23

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