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Cornerstone · Grades 3–5 Keystones #1 18 June 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 June 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 8x - 5 = 35

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

    Calculate the hypotenuse when a = 4cm and b = 15cm

    Answer: 15.52cm
  4. 4. Ratio Sharing in a ratio

    Share 80 in the ratio 1:4

    Answer: 16 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 8, 6, 27, 6, 21, 36, 50, 5

    Answer: 19.9

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