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Cornerstone · Grades 3–5 Keystones #1 23 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 8x - 11 = 69

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

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

    Answer: 9.9cm
  4. 4. Ratio Sharing in a ratio

    Share 18 in the ratio 1:2

    Answer: 6 and 12
  5. 5. Statistics Mean

    Calculate the mean of: 25, 22, 23, 18, 26, 33

    Answer: 24.5

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