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Cornerstone · Grades 3–5 Keystones #1 18 March 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 March 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 2⁄11

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

    Solve: 7x - 9 = 96

    Answer: x = 15
  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 100 in the ratio 1:4

    Answer: 20 and 80
  5. 5. Statistics Mean

    Find the mean of: 12, 17, 9, 7

    Answer: 11.25

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