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Cornerstone · Grades 3–5 Keystones #1 5 August 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 August 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 2⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 5x + 13 = 28

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

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Share 40 in the ratio 1:3

    Answer: 10 and 30
  5. 5. Statistics Mean

    Find the mean of: 20, 15, 7

    Answer: 14

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