Temat: Zamiana jednostek. https://wirtualnaklasa.cba.pl/wp-content/uploads/2020/04/Zamiana_jednostek_kl_VIa_cz_1.mp4 https://wirtualnaklasa.cba.pl/wp-content/uploads/2020/04/Zamiana_jednostek_kl_VIa_cz_2.mp4 https://wirtualnaklasa.cba.pl/wp-content/uploads/2020/04/Zamiana_jednostek_kl_VIa_cz_3.mp4