PROSZĘ TO PILNE ! a)zamień na metry 150cm= 380mm= 2,5km= b) zamień na kilogramy 30 dag= 1200mg= 20g= c) zamień na sekundy 1,5h= 3min= 1dob= 2h37min=

a) 150cm= 1,5m 380mm= 0,38m 2,5km= 2500m b)  30 dag= 0,3kg 1200mg= 0.0012 kg 20g= 0.02 kg c)  1,5h= (1min - 60 sek, 1h - 60*60 = 3600s) = 5400s 3min= 180s 1dob= (1h - 3600s) = 24*3600 = 86400s 2h37min= (1 min - 60 sek, 2h - 7200s) = 7200s + 2220s = 9420s