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

Five GCSE retrieval questions · 1 November 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 6⁄7

    Answer: 43⁄42
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 49

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

    Calculate the hypotenuse when a = 5cm and b = 9cm

    Answer: 10.3cm
  4. 4. Ratio Sharing in a ratio

    Share 140 in the ratio 3:4

    Answer: 60 and 80
  5. 5. Statistics Mean

    Find the mean of: 12, 8, 7

    Answer: 9

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