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

Five GCSE retrieval questions · 5 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 1⁄6

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 3x + 7 = 37

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 4cm

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 1:2

    Answer: 14 and 28
  5. 5. Statistics Mean

    Find the mean of: 10, 20, 13, 11

    Answer: 13.5

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