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Cornerstone · Grades 3–5 Keystones #1 22 February 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 February 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 2⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 5x + 14 = 69

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 4:1

    Answer: 36 and 9
  5. 5. Statistics Mean

    Find the mean of: 14, 8, 5

    Answer: 9

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