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![](https://rs.olm.vn/images/avt/0.png?1311)
\(3km^29ha=309ha\)
\(2\dfrac{1}{2}ha=\dfrac{5}{2}ha=250dam^2>212dam^2=2ha12dam^2\)
![](https://rs.olm.vn/images/avt/0.png?1311)
ko biết làm????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
![](https://rs.olm.vn/images/avt/0.png?1311)
a: \(8ha=80000m^2\)
b: \(16km^2=1600ha\)
c: \(500dam^2=5ha\)
d: \(150000m^2=15ha\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
4ha=40 000m2 1/2ha=5000m2
1/100ha=100m2
20ha=200 000m2 1/10km2=10ha
1km2=100ha 3/4km2=75ha
15km2=150ha
b) 60 000m2=6ha 1800ha=18km2 27000ha=270km2
800 000m2=80ha
![](https://rs.olm.vn/images/avt/0.png?1311)
\(2h8dm^2< 280dam^2\)
\(8ha15m^2< 80150m^2\)
\(7\dfrac{1}{2}ha>7ha12dam^2\)
\(9km^25ha=905ha\)
\(7\dfrac{33}{100}ha>6ha3dam^2\)
\(4km^27ha< 4\dfrac{7}{10}km^2\)
180000dm2= 1800 m2
30000cm2=3 m2
điền dấu < ,>,=
9ha 4dam2 < 940dam2
5/7/100ha > 5ha 7dam2
6km2 4ha = 604ha
k mình nha
ai k mình, mình k lại
180000dm2 = 1800m2
30000cm2 = 3m2
5ha 4dam2 < 940dam2
\(5\frac{7}{100}ha............5ha7dam^2\)
\(5\frac{7}{100}ha=\frac{507}{100}ha\)
\(\frac{507}{100}ha=5ha7dam^2\)
nên \(5\frac{7}{100}=5ha7dam^2\)
6km2 4ha = 604 ha