zamień 2 kwadranse na godziny i minuty i sekundy,20 sekund na minuty i godziny ,1 godzina i 20 minut na godziny i sekundy 2.zamień 1,25km = ...... m 2 m 2 (kwadratowe) =....... cm 2 800000 cm 3= ......... m 3 20 s =....... min 75 hPa = ....Pa 789 N = ........... Kn 345 dag = ....... g 35 dm ........ m 2850 cm 2 ....... m 2 1 h i 20 min....... = h 20 min......... =s 2 MPa = ..... hPa 54 kN = ....... N 123 dag = .....kg
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1,25km=1250m
2m=200cm
21h20min=21,20*60=1272min=
20min=72000
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