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Cornerstone · Grades 3–5 Keystones #1 15 March 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 15 March 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 5⁄9

    Answer: 7⁄9
  2. 2. Algebra Two-step equations

    Solve: 5x - 9 = 36

    Answer: x = 9
  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 176 in the ratio 4:3:4

    Answer: 64, 48 and 64
  5. 5. Statistics Mean

    Find the mean of: 10, 6, 8

    Answer: 8

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