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

Five GCSE retrieval questions · 1 August 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 1⁄7

    Answer: 13⁄42
  2. 2. Algebra Two-step equations

    Solve: 2x + 14 = 38

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 12cm

    Answer: 12.37cm
  4. 4. Ratio Sharing in a ratio

    Share 32 in the ratio 1:3

    Answer: 8 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 5, 50, 22, 6, 35, 34

    Answer: 25.3

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