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Cornerstone · Grades 3–5 Keystones #1 10 August 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 August 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 4⁄7

    Answer: 59⁄42
  2. 2. Algebra Two-step equations

    Solve: 7x + 11 = 95

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 8cm

    Answer: 8.54cm
  4. 4. Ratio Sharing in a ratio

    Share 36 in the ratio 1:3

    Answer: 9 and 27
  5. 5. Statistics Mean

    Find the mean of: 18, 8, 18, 9, 7

    Answer: 12

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