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Cornerstone · Grades 3–5 Keystones #1 19 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 1⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 3x - 19 = 11

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 13cm

    Answer: 13.34cm
  4. 4. Ratio Sharing in a ratio

    Share 42 in the ratio 4:3

    Answer: 24 and 18
  5. 5. Statistics Mean

    Find the mean of: 6, 18, 17, 11, 4

    Answer: 11.2

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