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Cornerstone · Grades 3–5 Keystones #1 20 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄8 + 2⁄3

    Answer: 17⁄12
  2. 2. Algebra Two-step equations

    Solve: 2x + 8 = 26

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 9cm

    Answer: 14.21cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 2:3

    Answer: 24 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 42, 23, 48, 46, 23, 10

    Answer: 32

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