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25dm2=1/4m2
36dm2=9/25m2
450cm=9/200m2
575cm2= xin lỗ i nha chặp nữa mình giải
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![](https://rs.olm.vn/images/avt/0.png?1311)
1/ 25 dm2=\(\dfrac{1}{4}m^2\)
2/ 36 dm2 =\(\dfrac{9}{25}m^2\)
3/ 450 cm2 =\(\dfrac{9}{200}m^2\)
4/ 575 cm2=\(\dfrac{23}{40}m^2\)
1) \(25dm^2=0.25m^2\)
2) \(36dm^2=0,36m^2\)
3) \(450cm^2=\dfrac{9}{200}m^2\)
4) \(575cm^2=\dfrac{23}{400}m^2\)
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40m2 2dm2 = 4002 dm2
2507 cm2 = 25 dm2 7 cm2
2m2 56cm2 = 20056 cm2
12 409cm2 = 1 m2 2409 cm2
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a) 4 m2 = 40000 cm2 m2 = 50dm2
16 m2 = 1600 dm2 dm2 = 50 cm2
308 dm2 = 30800cm2 m2 = 100 cm2
b) 700 cm2 = 7 dm2 15 m2 9 dm2 = 1509 dm2
3400 dm2 = 34 m2 7 dm2 25 cm2 = 725 cm2
50 000 cm2 = 5 m2 28 m2 50 cm2 = 280050 cm2
c) 948 dm2 = 9 m2 48 dm2 8791 dm2 = 87 m2 91 dm2
705 cm2 = 7 dm2 5cm2 30 045 cm2 = 3 m2 45 cm2
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a 15m2 6cm2 =15006cm2
2m2 8dm2 =208dm2
b 1/5m2=20dm2
2/5dm2=40 cm2
c 800mm2=8cm2
5000cm2 =1/2 m2
câu cuối mình ko chắc lắm
a,15m2 6cm2=1506m2
2m2 8dm2=208dm2
b,1/5m2=20dm
2/5dm2=40cm2
c,800mm2=8cm2
5000cm2=0,5m2
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 1 dm2 = 100 cm2
14 dm2 = 1 400 cm2
1 m2 = 100 dm2
b) 300 cm2 = 3 dm2
5 000 cm2 = 50 dm2
300 dm2 = 3 m2
c) 7 dm2 60 cm2 = 760 cm2
29 dm2 8 cm2 = 2 908 cm2
d) 125 cm2 = 1 dm2 25 cm2
6870 cm2 = 68 dm2 70 cm2
a) 1 dm2 = 100 cm2
14 dm2 = 1 400 cm2
1 m2 = 100 dm2
b) 300 cm2 = 3 dm2
5 000 cm2 = 50 dm2
300 dm2 = 3 m2
c) 7 dm2 60 cm2 = 760 cm2
29 dm2 8 cm2 = 2 908 cm2
d) 125 cm2 = 1 dm2 25 cm2
6870 cm2 = 68 dm2 70 cm2
19,6 cm2 = 0,196 dm2