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Cornerstone · Grades 3–5 Keystones #1 17 May 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 May 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄7 + 2⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 7x - 7 = 98

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

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  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: 10, 4, 2, 20, 4

    Answer: 8

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