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Cornerstone · Grades 3–5 Keystones #1 11 June 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 11 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄10 + 3⁄10

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

    Solve: 3x + 4 = 31

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Divide 98 in the ratio 4:2:1

    Answer: 56, 28 and 14
  5. 5. Statistics Mean

    Calculate the mean of: 16, 37, 36, 31, 46, 20

    Answer: 31

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