课程仪表板

Matematicas - Pre- Vocacional

课 1

Area y perimetro

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Start Here
看

https://www.youtube.com/watch?v=13L7mmlff6U
读
读

https://recursospcpi.files.wordpress.com/2011/04/perc3admetros-y-c3a1reas-de-figuras-planas-ejercicios.pdf
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