5 cm2 2mm2 = .................... cm2
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2mm2=0,02cm2
45cm2=0,0000000045km2
5dm2=0,05m2
25mm2=0,25cm2
34dm2=0,34m2
28cm2=0,0028m2
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\(8cm^2+5cm^2=13cm^2\)
\(9cm^2\times3=27cm^2\)
\(37cm^2-20cm^2=17cm^2\)
\(36cm^2:4=9cm^2\)
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a) 37 cm2 + 25 cm2 = 62 cm2 | b) 15 cm2 x 4 = 60 cm2 |
50 cm2 – 12 cm2 = 38 cm2 | 56 cm2 : 7 = 8 cm2 |
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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
![](https://rs.olm.vn/images/avt/0.png?1311)
115 dm2 = 11500 cm2 5 tạ 32 yến= 820 kg
34 dm2 12cm2= 3412 cm2 8 m2 200 cm2= 802 dm2
5 m2 28m2= 330000 cm2 6 km2 62m2= 60000620000cm2
5,02
@Bảo
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