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Cornerstone · Grades 3–5 Keystones #1 31 May 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 31 May 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 1⁄6

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

    Solve: 6x + 14 = 44

    Answer: x = 5
  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 60 in the ratio 3:1

    Answer: 45 and 15
  5. 5. Statistics Mean

    Find the mean of: 15, 3, 11, 19

    Answer: 12

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