3,09 m2 = ?cm2
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![](https://rs.olm.vn/images/avt/0.png?1311)
Bài làm
19,7 m2 = 1970 dm2
3,09 ha = 30900 m2
0,00496 cm2 = 0,000496 m2
# Hok tốt #
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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) 4 m2 = 400 dm2
7 m2 = 70 000 cm2
3 m2 = 3 000 000 m2
b) 600 cm2 = 6 dm2
300 dm2 = 3 m2
80 000 mm2 = 800 cm2
c) 1 m2 23 dm2 = 123 dm2
5 m2 3 dm2 = 503 dm2
9 m2 23 cm2 = 90 023 cm2
a) 4 m2 = 400 dm2
7 m2 = 70 000 cm2
3 m2 = 3 000 000 m2
b) 600 cm2 = 6 dm2
300 dm2 = 3 m2
80 000 mm2 = 800 cm2
c) 1 m2 23 dm2 = 123 dm2
5 m2 3 dm2 = 503 dm2
9 m2 23 cm2 = 90 023 cm2
![](https://rs.olm.vn/images/avt/0.png?1311)
4 m2 32 dm2 = 432 dm2
5 m2 870 cm2 = 50 870 cm2
9 m2 42 cm = 90 042 cm2
5 km2 480 m2 = 5 000 480 m2
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a) \(1m^2=100dm^2=10000cm^2\)
\(1dm^2=100cm^2=10000mm^2\)
\(1cm^2=100mm^2\)
\(1m^2=1000000mm^2\)
b) \(6200dm^2=62m^2\)
\(3600mm^2=36cm^2\)
\(54000cm^2=540dm^2\)
\(150000cm^2=1500m^2\)
\(247dm^2=2m^247dm^2\)
\(360mm^2=2cm^260mm^2\)
\(1580cm^2=15dm^280cm^2\)
\(5604dm^2=56m^24dm^2\)
111111111111111111111111+854242402141141410414778962-641040510012121-999999999999999 111122288+9999999999999999999999999999585856
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a. 17 dam2 5 m2 =1705m2
b. 16 hm2 51 m2 = 16051m2
c. 6542 cm2 = 65 dm242 cm2
d. 203040089 m2 = 20 km2 3 hm2 4 dam2 89 m2
e. 3 dm2 27 cm2 - 36 cm2 = 291 cm2
f. 63 dm2 75 cm2 + 58 dm2 46 cm2 = 1 m2 22 dm2 21 cm2
g. 3 dm2 5 cm2 : 5 = 61 cm2
h. 44 dm2 x 4 = 1 m2 76 dm2
3,09 m2 = 30900 cm2
3090