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Cornerstone · Grades 3–5 Keystones #1 31 January 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 31 January 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 4⁄6

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

    Solve: 8x - 12 = 76

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

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 49 in the ratio 4:3

    Answer: 28 and 21
  5. 5. Statistics Mean

    Find the mean of: 15, 16, 12, 13, 4

    Answer: 12

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