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

Five GCSE retrieval questions · 3 August 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄6 + 4⁄8

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 5x + 7 = 62

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics Mean

    Calculate the mean of: 41, 11, 42, 44, 22, 25, 42, 34. Give your answer to 2 decimal places

    Answer: 32.63

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