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Cornerstone · Grades 3–5 Keystones #1 8 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄11 + 3⁄11

    Answer: 8⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x + 14 = 35

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

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 80 in the ratio 1:3

    Answer: 20 and 60
  5. 5. Statistics Mean

    Calculate the mean of: 34, 21, 19, 8, 36, 14, 13, 47

    Answer: 24

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