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Cornerstone · Grades 3–5 Keystones #1 30 May 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 May 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄6 + 6⁄8

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 3x + 15 = 36

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Divide 297 in the ratio 4:3:4

    Answer: 108, 81 and 108
  5. 5. Statistics Mean

    Find the mean of: 4, 5, 9

    Answer: 6

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