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Cornerstone · Grades 3–5 Keystones #1 18 May 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 4⁄5

    Answer: 13⁄10
  2. 2. Algebra Two-step equations

    Solve: 7x - 12 = 30

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 60 in the ratio 2:1

    Answer: 40 and 20
  5. 5. Statistics Mean

    Find the mean of: 4, 13, 14, 20, 14

    Answer: 13

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