miércoles, 22 de septiembre de 2010
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Pure mathematics is, in its way, the poetry of logical ideas. ~Albert Einstein
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3 comentarios:
Hi teacher i already saw the video now I understand better how to evaluate expresions, have a nicee day atte:
Jesus Alberto Elizondo Salazar #6 7A
Thank u miss i already saw this video it is interesting .
Guillermo Kerber #16 7C
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