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Cornerstone · Grades 3–5 Keystones #1 27 August 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 10⁄12 + 1⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 3x - 17 = 13

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

    Calculate the hypotenuse when a = 10cm and b = 11cm

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

    Share 36 in the ratio 2:1

    Answer: 24 and 12
  5. 5. Statistics Mean

    Find the mean of: 6, 18, 18, 3, 4

    Answer: 9.8

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