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Cornerstone · Grades 3–5 Keystones #1 27 December 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 December 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 4⁄5

    Answer: 17⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x - 14 = 14

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

    Calculate the hypotenuse when a = 3cm and b = 10cm

    Answer: 10.44cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 2:1

    Answer: 56 and 28
  5. 5. Statistics Mean

    Calculate the mean of: 42, 10, 11, 44, 17, 47

    Answer: 28.5

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