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Cornerstone · Grades 3–5 Keystones #1 31 December 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 31 December 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 4x + 8 = 56

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 168 in the ratio 1:2:3

    Answer: 28, 56 and 84
  5. 5. Statistics Mean

    Find the mean of: 6, 3, 5, 14

    Answer: 7

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