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Cornerstone · Grades 3–5 Keystones #1 26 June 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 June 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄6 + 3⁄6

    Answer: 2⁄3
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 34

    Answer: x = 7
  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: 6, 5, 7

    Answer: 6

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