\(1m^2=100dm^2\)
\(1m^2=10000cm^2\)
\(1m^2=1000000mm^2\)
\(1m^2=0,01dam^2\)
\(1m^2=0,0001hm^2\)
\(1m^2=0,000001km^2\)

100dm2 

^10000cm2

0,01dam2

0,0001hm2

0,000001km2

1m2=100dm2

1m2=10000cm2

1m2=1000000mm2

1m2=****dam2

1m2=****hm2

1m2=*****km2

$a)$

$\circ 1m^2=100d{m}^2=10000c{m}^2=1000000m{m}^2$

GT: $1m^2=100d{m}^2$

$1d{m}^2=100c{m}^2$

$1c{m}^2=100m{m}^2$

$\circ 1ha=10000m^2$

$\circ 1k{m}^2=100ha=1000000m^2$

$b)$

$\circ 1m^2=0,01da{m}^2$

$\circ 1ha=0,01k{m}^{}$

a, 1m² = 100 dm² = 10000 cm² = 1000000 mmm²

   1ha = 10000 m² 

   1km² = 100 ha = 1000000m²

b, 1m² = \(\dfrac{1}{100}\) dam²

    1m² = \(\dfrac{1}{10000}\) hm² = \(\dfrac{1}{10000}\)ha

      1m² = \(\dfrac{1}{1000000}\)km²

         4ha = \(\dfrac{4}{100}\)km² = \(\dfrac{1}{25}\)km²

100

10000

1000000

0,01

1m²=100dm²

1m²=10000cm²

1m²=1000000mm²

1m²=0,01dam²

100
10000
1000000
0,01

a) 1m2 = 100dm2 = 10000cm2= 1000000mm2

1ha = 10000m2

1km2 = 100ha = 1000000m2

b)1m2 = 0,01dam2

1m2 = 0,0001hm2 = 0,0001ha

1m2 = 0,000001km2

1ha = 0,01km2

4ha = 0,04km2

2 = ...km2

1ha=...km2 

4ha=...km2

Bài 2:

Viết các số đo sau dưới dạng số đo có đơn vị là héc-ta:

a)  1 m²  =  100 dm²  =   10000 cm²  =   1000000 mm²

1 ha  =  10000 m²

1 km²  =   100 ha  =  1000000 m²

b)  1 m² =  0,01 dam²

1m²  =  0,000001 km²

1 ha  =   0,01km²

4 ha  =  0,04 km²

a) \(1m^2=100dm^2=10000cm^2=1000000mm^2\)

\(1ha=10000m^2\)

\(1km^2=100ha=1000000m^2\)

a)  1 m²  =  100 dm²  =   10000 cm²  =   1000000 mm²

1 ha  =  10000 m²

1 km²  =   100 ha  =  1000000 m²

b)  1 m² =  0,01 dam²

1m²  =  0,000001 km²

1 ha  =   0,01km²

4 ha  =  0,04 km²

a: \(1m^2=100dm^2\)

b: \(125dm^2=1m^225dm^2\)

a/ 5 ha =50000m2

2 km2 =2000000m2

45 dam2 =0,0045 m2

b/ 400 dm2 =4 m2

500 dm2 =0,05 m2

70 000 cm2 = ... m2

c/ 4 tấn 562 kg =4,562tấn

3 tấn 14 kg =3,014tấn

d/ 315 cm = 3,15m

34 dm =3,4m

a/ 5 ha = ..50000. m2

2 km2 = ..2000000 .m2

45 dam2 = ..4500 .m2

b/ 400 dm2 = ..4 .m2

500 dm2 = ..5. m2

70 000 cm2 = ..7. m2

c/ 4 tấn 562 kg = .4,562.. tấn

3 tấn 14 kg = .3,014.. tấn

d/ 315 cm = ..3,15. m

34 dm = ..3,4. m

a) 5 ha =50000m2

2 km2 =2000000m2

45 dam2 =0,0045 m2

b) 400 dm2 =4 m2

500 dm2 =0,05 m2

70 000 cm2 = ... m2

c) 4 tấn 562 kg =4,562tấn

3 tấn 14 kg =3,014tấn

d) 315 cm = 3,15m

34 dm =3,4m