Comprendiendo la multiplicación de números enteros

Now Playing:Es understand integer multiplication– Example 0

Introducción a la multiplicación de números enteros

Resuelve:
1. (+2)×(+5)
2. (-4)×(+6)
David puede hacer 15 sentadillas en un minuto. Tomando esto en cuenta, ¿Cuántas sentadillas puede hacer David en 8 minutos?

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