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Cornerstone · Grades 3–5 Keystones #1 27 March 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 27 March 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

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

    Solve: 3x + 14 = 26

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

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Divide 85 in the ratio 1:3:1

    Answer: 17, 51 and 17
  5. 5. Statistics Mean

    Calculate the mean of: 6, 46, 28, 19, 38, 50, 7, 22

    Answer: 27

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