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

Five GCSE retrieval questions · 5 January 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄7 + 3⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 5x + 5 = 35

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 14cm

    Answer: 18.44cm
  4. 4. Ratio Sharing in a ratio

    Divide 242 in the ratio 3:4:4

    Answer: 66, 88 and 88
  5. 5. Statistics Mean

    Calculate the mean of: 32, 43, 26, 43, 17, 9

    Answer: 28.3

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