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Cornerstone · Grades 3–5 Keystones #1 17 May 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 May 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄8 + 1⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 7x + 6 = 34

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 3:4

    Answer: 15 and 20
  5. 5. Statistics Mean

    Find the mean of: 2, 13, 12, 17

    Answer: 11

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