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Cornerstone · Grades 3–5 Keystones #1 2 May 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 May 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 4⁄8

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 3x + 7 = 28

    Answer: x = 7
  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 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics Mean

    Find the mean of: 5, 10, 12

    Answer: 9

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