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Cornerstone · Grades 3–5 Keystones #1 8 August 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄5 + 1⁄3

    Answer: 11⁄15
  2. 2. Algebra Two-step equations

    Solve: 4x - 19 = 37

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 14cm

    Answer: 17.2cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 4:1

    Answer: 24 and 6
  5. 5. Statistics Mean

    Calculate the mean of: 38, 17, 46, 13, 30, 33, 18

    Answer: 27.9

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