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Cornerstone · Grades 3–5 Keystones #1 12 July 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 July 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄11 + 1⁄11

    Answer: 8⁄11
  2. 2. Algebra Two-step equations

    Solve: 4x - 6 = 14

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 10cm

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Share 24 in the ratio 3:1

    Answer: 18 and 6
  5. 5. Statistics Mean

    Calculate the mean of: 30, 37, 30, 19, 38, 28

    Answer: 30.3

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