sumar 9 2 cifras

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Calculo mental umar 9 a un número de 2 cifra 001 Colegio Marista San José Luis Gutiérrez Martín - lgm@maristasleon.

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Page 1: Sumar 9   2 cifras

Calculo mental

Sumar 9 a un número de 2 cifras001

Colegio Marista San JoséLuis Gutiérrez Martín - [email protected]

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