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Cornerstone · Grades 3–5 Keystones #1 1 August 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 August 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄7 + 1⁄7

    Answer: 3⁄7
  2. 2. Algebra Two-step equations

    Solve: 6x + 12 = 48

    Answer: x = 6
  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 3:4

    Answer: 42 and 56
  5. 5. Statistics Mean

    Find the mean of: 2, 17, 3, 18, 15

    Answer: 11

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