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9m2 = 900dm2
600dm2 = 6m2
4m2 25dm2 = 425 dm2
500cm2= 5dm2
3km2= 3 000 000 m2
5 000 000m2 = 5km2
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7m2.....600 dm2
7m2 = 100 dm2 \(\times\) 7 = 700 dm2 > 600 dm2
Vậy 7 m2 > 600 dm2
2 km2 ...... 200 000 m2
2 km2 = 1 000 000 m2 \(\times\) 2 = 2 000 000 m2 > 200 000 m2
Vậy 2 km2 > 200 000 m2
500 000 m2 = \(\dfrac{500000}{1000000}\)km2 = 0,5 km2 < 5 km2
Vậy 500 000 m2 < 5 km2
Chọn đáp án đúng?
A. 3dm25cm2 = 350 cm2
B. 9000kg = 9 tấn
C. 600dm2 = 60 m2
D. 4 phút 15 giây = 415 giây
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7m2 > 600dm2
2km2 > 200 000m2
5 000 000m2 = 5km2
150 000dm2 > 150m2
11km2 = 11 000 000m2
1 200 000m2 < 1km2
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Trl :
3 m2 = 300 dm2
10 m2 = 1000 dm2
13 m2 = 1300 dm2
100 dm2 = 1 m2
200 dm2 = 2 m2
3400 dm2 = 34 m2
12 m2 234 dm2 = 1434 dm2
12 m2 3 dm2 = 1203 dm2
5634 dm2 = 56 m2 34 dm2
600 dm2 = 6 m2 .