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Cornerstone · Grades 3–5 Keystones #1 3 March 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 March 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 4⁄7

    Answer: 23⁄28
  2. 2. Algebra Two-step equations

    Solve: 2x + 6 = 12

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

    Calculate the hypotenuse when a = 12cm and b = 6cm

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Share 68 in the ratio 1:3

    Answer: 17 and 51
  5. 5. Statistics Mean

    Calculate the mean of: 25, 47, 7, 48, 30, 34, 6, 19

    Answer: 27

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