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Cornerstone · Grades 3–5 Keystones #1 5 June 2011 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 June 2011 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄8 + 1⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 5x + 3 = 63

    Answer: x = 12
  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

    Divide 175 in the ratio 3:3:1

    Answer: 75, 75 and 25
  5. 5. Statistics Mean

    Find the mean of: 6, 7, 17

    Answer: 10

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