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

  1. 1. Number Adding fractions

    Calculate: 1⁄9 + 3⁄9

    Answer: 4⁄9
  2. 2. Algebra Two-step equations

    Solve: 4x - 15 = 33

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Divide 60 in the ratio 3:1:2

    Answer: 30, 10 and 20
  5. 5. Statistics Mean

    Calculate the mean of: 46, 40, 50, 41, 22, 10

    Answer: 34.8

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