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![](https://rs.olm.vn/images/avt/0.png?1311)
50m2 = 5000dm2
900dm2 =9m2
2010m2 = 201000dm2
51 000 000 m2 = 51km2
10km2 = 10 000 000 m2
2 000 000m2 = 2km2
![](https://rs.olm.vn/images/avt/0.png?1311)
1km2 = 1000000m2
1m2 = 100dm2
32m2 49dm2 = 3249dm2
1000000 m2 = 1km2;
5km2 = 5000000m2
2000000m2 = 2km2.
![](https://rs.olm.vn/images/avt/0.png?1311)
1 km = 1 000 000 m2 5 000 000 m2 = 5 km2
6 m2 4 dm2 = 604 dm2 21 500 cm2 = 215 dm2
3 km2 40 m2 = 3 000 040 m2 3402 cm2 = 34 dm2 2 cm2
12 m2 4 dm2 = 1204 dm2 10 235 dm2 = 102 m2 35 dm2
HT nha + :))) + ~~~
![](https://rs.olm.vn/images/avt/0.png?1311)
530dm2 = 53000cm2
846000cm2 = 846dm2
10km2 = 10000000m2
13dm2 29cm2 = 1329cm2
300dm2 = 3m2
9000000m2 = 9km2.
![](https://rs.olm.vn/images/avt/0.png?1311)
100 dm2
846 dm2
53000 cm2
3 200 0000 m2
9 km2
320049 dm2
10 000 000 m2
3 m2
130029 cm2
![](https://rs.olm.vn/images/avt/0.png?1311)
a/ diện tích phòng học: 40 m2
b/ diện tích nươc Việt Nam: 330 991 km2
![](https://rs.olm.vn/images/avt/0.png?1311)
2km2= 2 000 000m2 6 000 000m2= 6km2
10km2= 10 000 000m2 17 000 000m2= 17km2
150m2= 15 000dm2 9 000 000m2= 900 000 000dm2
9m2= 90 000cm2 35m2 72dm2= 3 572dm2
2km2= 2 000 000m2 6 000 000 m2= 6km2
10km2= 10 000 000m2 17 000 000m2=17km2
150m2=15 000dm2 900 000m2=90 000 000dm2
9m2= 90 000cm2 35m2 72dm2=3 572dm2
50 m2 = 5000 dm2
2010m2 = 201000dm2
10km2 = 10000000m2
900dm2 = 9m2
51000000m2 = 51 km2
2000000m2 = 2km2
50 m2 = 5000 dm2
2010 m2 = 201000 dm2
10 km2 = 10000000 m2
900 dm2 = 9 m2
51000000m2 = 51 km2
2000000 m2 = 2 km2