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

Five GCSE retrieval questions · 7 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 3⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 7x + 6 = 90

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 11cm

    Answer: 14.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 234 in the ratio 2:3:4

    Answer: 52, 78 and 104
  5. 5. Statistics Mean

    Calculate the mean of: 38, 18, 45, 31, 40, 7, 11, 20

    Answer: 26.3

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