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Cornerstone · Grades 3–5 Keystones #1 8 October 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 October 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 6x + 4 = 34

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Share 85 in the ratio 4:1

    Answer: 68 and 17
  5. 5. Statistics Mean

    Find the mean of: 7, 19, 11, 5, 8

    Answer: 10

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