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Cornerstone · Grades 3–5 Keystones #1 3 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 4⁄7

    Answer: 31⁄42
  2. 2. Algebra Two-step equations

    Solve: 5x - 16 = 44

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

    Calculate the hypotenuse when a = 5cm and b = 6cm

    Answer: 7.81cm
  4. 4. Ratio Sharing in a ratio

    Share 77 in the ratio 4:3

    Answer: 44 and 33
  5. 5. Statistics Mean

    Find the mean of: 14, 10, 5, 20, 4

    Answer: 10.6

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