para los que quieran más ejercicios:
parte 1: https://2img.net/h/i282.photobucket.com/albums/kk261/lilac_igna/guia1.jpg
parte 2: https://2img.net/h/i282.photobucket.com/albums/kk261/lilac_igna/guia2.jpg
parte 1: https://2img.net/h/i282.photobucket.com/albums/kk261/lilac_igna/guia1.jpg
parte 2: https://2img.net/h/i282.photobucket.com/albums/kk261/lilac_igna/guia2.jpg