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Cornerstone · Grades 3–5 Keystones #1 23 August 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 August 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 1⁄6

    Answer: 1⁄3
  2. 2. Algebra Two-step equations

    Solve: 5x - 6 = 29

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 6cm

    Answer: 12.53cm
  4. 4. Ratio Sharing in a ratio

    Share 95 in the ratio 1:4

    Answer: 19 and 76
  5. 5. Statistics Mean

    Calculate the mean of: 35, 43, 8, 25, 8, 39

    Answer: 26.3

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