1,8km=... cm 20g=...dag 0,02kg=...mg 12cm=...km 33min=...s 1 tydzień=...s 102km=...cm

1,8km=.180000.. cm 20g=.2..dag 0,02kg=.20000..mg 12cm=0,00012...km 33min=.1980..s 1 tydzień=.604800..s 102km=10200000...cm