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Cornerstone · Grades 3–5 Keystones #1 20 August 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 August 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 2⁄9

    Answer: 4⁄9
  2. 2. Algebra Two-step equations

    Solve: 6x - 7 = 17

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 9cm

    Answer: 13.45cm
  4. 4. Ratio Sharing in a ratio

    Divide 120 in the ratio 2:1:2

    Answer: 48, 24 and 48
  5. 5. Statistics Mean

    Calculate the mean of: 46, 20, 35, 49, 8, 9

    Answer: 27.8

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