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Cornerstone · Grades 3–5 Keystones #1 27 April 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 April 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 2⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 7x - 18 = 24

    Answer: x = 6
  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 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics Mean

    Find the mean of: 3, 9, 14, 18, 10

    Answer: 10.8

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