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

Five GCSE retrieval questions · 3 January 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 3⁄11

    Answer: 6⁄11
  2. 2. Algebra Two-step equations

    Solve: 7x - 17 = 25

    Answer: x = 6
  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 132 in the ratio 1:2:3

    Answer: 22, 44 and 66
  5. 5. Statistics Mean

    Find the mean of: 10, 17, 17, 12

    Answer: 14

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