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Cornerstone · Grades 3–5 Keystones #1 25 August 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 August 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 1⁄3

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

    Solve: 2x - 6 = 24

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 14.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 121 in the ratio 3:4:4

    Answer: 33, 44 and 44
  5. 5. Statistics Mean

    Find the mean of: 11, 12, 7

    Answer: 10

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