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Cornerstone · Grades 3–5 Keystones #1 9 May 2010 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 May 2010 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 6 = 30

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Share 44 in the ratio 1:3

    Answer: 11 and 33
  5. 5. Statistics Mean

    Find the mean of: 12, 11, 14, 4, 14

    Answer: 11

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