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Cornerstone · Grades 3–5 Keystones #1 10 August 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 1⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 2x + 7 = 29

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 9cm

    Answer: 12.04cm
  4. 4. Ratio Sharing in a ratio

    Share 33 in the ratio 2:1

    Answer: 22 and 11
  5. 5. Statistics Mean

    Find the mean of: 13, 16, 3, 11, 4

    Answer: 9.4

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