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Cornerstone · Grades 3–5 Keystones #1 9 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄5 + 1⁄4

    Answer: 9⁄20
  2. 2. Algebra Two-step equations

    Solve: 6x + 14 = 50

    Answer: x = 6
  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 60 in the ratio 3:2:1

    Answer: 30, 20 and 10
  5. 5. Statistics Mean

    Find the mean of: 18, 20, 1

    Answer: 13

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