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Cornerstone · Grades 3–5 Keystones #1 10 August 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄11 + 1⁄11

    Answer: 6⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x + 15 = 87

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

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 140 in the ratio 3:4

    Answer: 60 and 80
  5. 5. Statistics Mean

    Find the mean of: 13, 24, 5

    Answer: 14

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