Ecuación 2


Problema de edades. Induciendo el planteo de ecuaciones.

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Ecuación 1


Problema de edades. Estrategia semiotica de percepcion. lenguaje algebráico.

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cool arrow




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0


Is there a number?


This is really really hard.

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1

Help what are the numbers


How does this work?

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Where you live




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Find the mistake.




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1

I know your number




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1

Fish




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1

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