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Cornerstone · Grades 3–5 Keystones #1 5 June 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 5 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄9 + 1⁄9

    Answer: 8⁄9
  2. 2. Algebra Two-step equations

    Solve: 2x - 9 = 3

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Divide 80 in the ratio 2:3:3

    Answer: 20, 30 and 30
  5. 5. Statistics Mean

    Find the mean of: 2, 4, 18, 10, 1

    Answer: 7

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