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Cornerstone · Grades 3–5 Keystones #1 27 August 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 August 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 2⁄3

    Answer: 7⁄6
  2. 2. Algebra Two-step equations

    Solve: 7x - 5 = 30

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

    Calculate the hypotenuse when a = 3cm and b = 14cm

    Answer: 14.32cm
  4. 4. Ratio Sharing in a ratio

    Share 120 in the ratio 1:2

    Answer: 40 and 80
  5. 5. Statistics Mean

    Find the mean of: 9, 8, 14

    Answer: 10.333333333333

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