MATH!!

hiii i needd help on this!!

30.47cm^2=___________mm^2

and

187000 cm^2+ 3.45m^2=_____m^2+_____m^2=________m^2

30.47 cm² = 3047mm²
and
187000 cm² + 3.45m² = 18.7m² + 3.45m² = 22.15 m²

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