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Cornerstone · Grades 3–5 Keystones #1 27 March 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 March 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄9 + 4⁄9

    Answer: 8⁄9
  2. 2. Algebra Two-step equations

    Solve: 6x + 7 = 43

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 20cm and 21cm

    Answer: 29cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 2:1

    Answer: 20 and 10
  5. 5. Statistics Mean

    Find the mean of: 18, 5, 4

    Answer: 9

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