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Cornerstone · Grades 3–5 Keystones #1 14 April 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 April 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 2⁄3

    Answer: 22⁄15
  2. 2. Algebra Two-step equations

    Solve: 7x + 9 = 44

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 12cm

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

    Divide 189 in the ratio 2:3:2

    Answer: 54, 81 and 54
  5. 5. Statistics Mean

    Find the mean of: 12, 3, 3

    Answer: 6

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