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Cornerstone · Grades 3–5 Keystones #1 4 October 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 October 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄7 + 2⁄3

    Answer: 26⁄21
  2. 2. Algebra Two-step equations

    Solve: 6x + 4 = 52

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 7cm

    Answer: 8.06cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics Mean

    Find the mean of: 5, 13, 17, 6

    Answer: 10.25

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