User contributions for 83.181.187.197
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17 December 2007
- 22:3722:37, 17 December 2007 diff hist +1,648 N Geometry for elementary school/Our tools: Ruler and compass No edit summary current
16 December 2007
- 00:1800:18, 16 December 2007 diff hist +2,041 N Geometry for elementary school/Notation No edit summary current