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Cornerstone · Grades 3–5 Keystones #1 17 March 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 March 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄11 + 5⁄11

    Answer: 9⁄11
  2. 2. Algebra Two-step equations

    Solve: 2x - 17 = 3

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 5cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 40 in the ratio 4:1

    Answer: 32 and 8
  5. 5. Statistics Mean

    Find the mean of: 19, 13, 11, 5

    Answer: 12

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