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Cornerstone · Grades 3–5 Keystones #1 1 July 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄4 + 5⁄7

    Answer: 27⁄28
  2. 2. Algebra Two-step equations

    Solve: 3x + 7 = 16

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

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 105 in the ratio 3:4

    Answer: 45 and 60
  5. 5. Statistics Mean

    Find the mean of: 24, 17, 8, 11

    Answer: 15