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Calculați in S.I:
a)200 cm+0,2 dam+2000mm=
b)2 cm patrati+0,00002dam patrati+200mm patrati=
c)25 cm cubi+0,25 dm cubi+25 cl=
d)200 dm cubi=
e)200 dl=
f )450min+2h 35 min

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Răspuns :

a) 200 cm+0.2 dam+2000 mm=?
200 cm=2 m
0.2 dam=2 m
2000 mm=2 m
2 m+2 m+2 m=6 m

b) 2 cm^2+0.00002 dam^2+200 mm^2=?
2cm^2=0.00002 m^2
0.00002 dam^2=0.02 m^2
200 mm^2= 0.0002 m^2
0.00002 m^2+0.02 m^2+0.0002 m^2= =0.0222 m^2

c) 25 cm^3+0.25 dm^3+25 cl=?
25 cm^3=0.025 dm^3=0.025 l
0.25 dm^3= 0.25 l
25 cl=0.25 l
0.025 l+0.25 l+0.25 l=0.525 l

d) 200 dm^3=0.2 m^3

e) 200 dl=20 l

f)450 min+2 h 35 min=
2h=120 min
450 min+ 120 min+35 min=605 min=
=605 min*60=36300 s