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Cornerstone · Grades 3–5 Keystones #1 26 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 2⁄6

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

    Solve: 7x - 13 = 92

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 14cm

    Answer: 14.87cm
  4. 4. Ratio Sharing in a ratio

    Share 25 in the ratio 3:2

    Answer: 15 and 10
  5. 5. Statistics Mean

    Calculate the mean of: 14, 23, 22, 25, 34, 13, 50

    Answer: 25.9

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