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Cornerstone · Grades 3–5 Keystones #1 2 July 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 2x + 11 = 25

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Divide 52 in the ratio 1:2:1

    Answer: 13, 26 and 13
  5. 5. Statistics Mean

    Calculate the mean of: 7, 13, 33, 33, 28, 25

    Answer: 23.2

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