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

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

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

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

    Solve: 4x + 11 = 27

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

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

    Share 98 in the ratio 4:3

    Answer: 56 and 42
  5. 5. Statistics Mean

    Find the mean of: 8, 25, 2, 13

    Answer: 12

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