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Cornerstone · Grades 3–5 Keystones #1 29 November 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 29 November 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 7⁄11

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

    Solve: 4x + 12 = 24

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

    Calculate the hypotenuse when a = 5cm and b = 9cm

    Answer: 10.3cm
  4. 4. Ratio Sharing in a ratio

    Divide 117 in the ratio 4:3:2

    Answer: 52, 39 and 26
  5. 5. Statistics Mean

    Find the mean of: 9, 12, 3, 7

    Answer: 7.75

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