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Cornerstone · Grades 3–5 Keystones #1 10 November 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 November 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄5 + 1⁄3

    Answer: 11⁄15
  2. 2. Algebra Two-step equations

    Solve: 7x + 13 = 90

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

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 1:4

    Answer: 9 and 36
  5. 5. Statistics Mean

    Find the mean of: 2, 18, 10

    Answer: 10

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