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Cornerstone · Grades 3–5 Keystones #1 8 May 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 May 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 2⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 2x - 20 = 2

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

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 161 in the ratio 2:2:3

    Answer: 46, 46 and 69
  5. 5. Statistics Mean

    Find the mean of: 7, 8, 3, 14

    Answer: 8

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