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

Five GCSE retrieval questions · 1 November 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄5 + 2⁄5

    Answer: 3⁄5
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 34

    Answer: x = 7
  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 30 in the ratio 3:2

    Answer: 18 and 12
  5. 5. Statistics Mean

    Find the mean of: 14, 9, 9

    Answer: 10.666666666667

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