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Cornerstone · Grades 3–5 Keystones #1 17 June 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 June 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 4⁄6

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

    Solve: 7x - 12 = 16

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 11cm

    Answer: 12.08cm
  4. 4. Ratio Sharing in a ratio

    Share 75 in the ratio 4:1

    Answer: 60 and 15
  5. 5. Statistics Mean

    Calculate the mean of: 6, 43, 50, 29, 26, 28, 27

    Answer: 29.9

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