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Cornerstone · Grades 3–5 Keystones #1 22 September 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 September 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

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

    Solve: 7x - 19 = 51

    Answer: x = 10
  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 1:3

    Answer: 15 and 45
  5. 5. Statistics Mean

    Find the mean of: 17, 11, 2

    Answer: 10

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