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Iniciación al empleo de letras en expresiones algebraicas, Vol. 2El uso, novedoso para el estudiante, de letras como representacin de cantidades no definidas puede ser causa de desconcierto y, en algunos casos, el origen de un persistente obstculo en el aprendizaje matemtico. Este segundo volumen se propone introducir, de manera paulatina, el uso de las letras en el lenguaje algebraico como una ayuda para la comprensin e interpretacin en operaciones de adicin y multiplicacin. Integran este volumen una serie de
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4.8 ★★★★★
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★★★★★ 5
Good price works great
Great product
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Amplifier
Works good
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Reviewed in the United States on April 29, 2026
★★★★★ 1
Low quality. Recommend something from a better brand.
Low quality. Seemed fine until the first one I ordered one of the terminals broke off with very little tightening force. The replacement i had ordered worked for a few days then quit working altogether. Overall disappointed.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Bueno
Lo recomiendo
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Good Relay
Works very well
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Reviewed in the United States on August 27, 2024
