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

Five GCSE retrieval questions · 3 June 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 2⁄4

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 7x + 14 = 35

    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

    Divide 300 in the ratio 3:4:3

    Answer: 90, 120 and 90
  5. 5. Statistics Mean

    Calculate the mean of: 27, 43, 44, 25, 20, 32, 8, 5

    Answer: 25.5

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