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Cornerstone · Grades 3–5 Keystones #1 6 August 2010 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 August 2010 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 2⁄4

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

    Solve: 3x - 10 = 8

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

    Calculate the hypotenuse when a = 8cm and b = 6cm

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

    Share 65 in the ratio 3:2

    Answer: 39 and 26
  5. 5. Statistics Mean

    Find the mean of: 8, 20, 6, 6

    Answer: 10

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