1m2 = 0,01dam2

1m2 = 0,0001hm2 = 0,0001ha

1ha = 0,01km2

1m2 = 0,000001km2

4ha = 0,04km2

$a)$

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

GT: $1m^2=100d{m}^2$

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

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

$\circ 1ha=10000m^2$

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

$b)$

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

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

$\circ 1m^2=0,0001h{m}^2=0,0001ha$

GT: $h{m}^2=ha$

$\circ 4ha=0,04k{m}^2$

GT: $1ha=0,01k{m}^2$

$\circ 1m^2=0,000001k{m}^2$

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

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

100dm2 

^10000cm2

0,01dam2

0,0001hm2

0,000001km2

1m2=100dm2

1m2=10000cm2

1m2=1000000mm2

1m2=****dam2

1m2=****hm2

1m2=*****km2

1m²=0,0 001hm²

1m²=0,000 001km²

KHÔNG CHẮC LÀ ĐÚNG ĐÂU

1m²=0,0001hm²

1m²=0,000001km²

1 m 2   =   0 , 000001 k m 2               9 h a   =   0 , 09 k m 2

0,000001

0,09

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

\(1ha=10000m^2\)

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

0,00001km2

1m²=0,000001km²

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