\(8,56dm^2=856cm^2\) \(0,01ha=10m^2\)
\(1,8ha=18000m^2\) \(2,7dm^2=2dm^270cm^2\)
\(6,9m^2=6m^290dm^2\) \(0,03ha=300m^2\)
\(7ha68m^2=7,0068ha\) \(13ha25m^2=13,0025ha\)
\(1m^225cm^2=10025cm^2\) \(1m^325cm^3=1,000025m^3\)
\(8dam^2=800m^2\) \(21dam^2=21hm^2\)
\(3075dm^3=3m^375dm^3\) \(3ha50m^2=30050m^2\)

4 và 5