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Cornerstone · Grades 3–5 Keystones #1 2 August 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 August 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄7 + 1⁄7

    Answer: 5⁄7
  2. 2. Algebra Two-step equations

    Solve: 3x + 7 = 16

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

    Calculate the hypotenuse when a = 12cm and b = 6cm

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 3:2:1

    Answer: 48, 32 and 16
  5. 5. Statistics Mean

    Calculate the mean of: 34, 31, 46, 33, 30, 18

    Answer: 32

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