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Cornerstone · Grades 3–5 Keystones #1 26 June 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 June 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 3⁄4

    Answer: 5⁄4
  2. 2. Algebra Two-step equations

    Solve: 7x + 13 = 55

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

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 114 in the ratio 2:1

    Answer: 76 and 38
  5. 5. Statistics Mean

    Find the mean of: 13, 12, 16, 7

    Answer: 12

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