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Cornerstone · Grades 3–5 Keystones #1 9 August 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 9 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄10 + 1⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 2x + 11 = 29

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

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 1:4

    Answer: 12 and 48
  5. 5. Statistics Mean

    Find the mean of: 2, 17, 4, 19, 6

    Answer: 9.6

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