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Cornerstone · Grades 3–5 Keystones #1 23 March 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 March 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄11 + 6⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x + 3 = 39

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 105 in the ratio 4:3

    Answer: 60 and 45
  5. 5. Statistics Mean

    Find the mean of: 17, 17, 3, 19

    Answer: 14

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