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Cornerstone · Grades 3–5 Keystones #1 10 November 2015 Skills week 1 of 7
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Five GCSE retrieval questions · 10 November 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄9 + 1⁄9

    Answer: 5⁄9
  2. 2. Algebra Two-step equations

    Solve: 6x + 5 = 35

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 75 in the ratio 2:3

    Answer: 30 and 45
  5. 5. Statistics Mean

    Find the mean of: 14, 7, 22, 15, 12

    Answer: 14

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