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Cornerstone · Grades 3–5 Keystones #1 26 November 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 26 November 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄10 + 1⁄10

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 3x + 7 = 31

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Divide 60 in the ratio 1:3:1

    Answer: 12, 36 and 12
  5. 5. Statistics Mean

    Find the mean of: 10, 13, 8

    Answer: 10.333333333333

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