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Cornerstone · Grades 3–5 Keystones #1 18 June 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 1⁄4

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x - 13 = 7

    Answer: x = 4
  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

    Share 49 in the ratio 4:3

    Answer: 28 and 21
  5. 5. Statistics Mean

    Calculate the mean of: 24, 41, 10, 28, 14, 12

    Answer: 21.5

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