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Cornerstone · Grades 3–5 Keystones #1 6 December 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 December 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄8 + 4⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 5x - 18 = 37

    Answer: x = 11
  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

    Divide 180 in the ratio 3:4:2

    Answer: 60, 80 and 40
  5. 5. Statistics Mean

    Find the mean of: 2, 13, 9

    Answer: 8

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