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Cornerstone · Grades 3–5 Keystones #1 17 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄5 + 2⁄4

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 5x - 8 = 42

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

    Calculate the hypotenuse when a = 12cm and b = 9cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 77 in the ratio 4:3

    Answer: 44 and 33
  5. 5. Statistics Mean

    Calculate the mean of: 8, 46, 26, 45, 30, 9

    Answer: 27.3

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