1km2 = 100 ha

1km2 = 1000000 m2

1 ha = 10000 m2

1m2 =            0,0001  ha

1 ha =     0,01 km2

9 ha = 0,09 km2

1km2 = 100 ha

1km2 =1000000m2

1ha = 10000m2

1m2 =0,0001ha

1ha =0,01km2

9ha =0,09km2

ban lam dung roi

ok good

$a)$

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

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

100

20

100ha

20ha

7 h a = 70   000 m 2     16 h a   =   160   000 m 2     1 k m 2 =   100 h a     40 k m 2 =   4000 h a

1/100 ha = 100 m2

1km2 = 100 ha

1/10km2 = 10 ha

15 km2 = 1500 ha

3/4 km2 = 75 ha

Mk cx cung cự giải đấy.

1)100m2

2)100ha

3)10ha

4)1500ha

5)75ha

1m2 = 100dm2 = 10000cm2 = 1000000 mm2

1km2 = 100ha = 1000000 m2

5m2 = 0,0005 hm2 = 0,0005 ha

6,8km2 = 680ha

7ha = 0,07 km2

1m² = 100dm² = 10000 cm² = 1000000mm²

1km² = 100ha = 1000000 m²

5m² = 0,0005hm² = 0,0005 ha

6,8km² = 680 ha

7ha = 0,07km²

1m2=100dm2=10000cm2=1000000mm2    ,

1km2=100ha=10000m2  ,

5m2=0,0005ha ,

6,8km2=680ha ,

7ha=0,07km2

mik nha

7ha

1 m 2   = 1000000   m m 2     1 k m 2   =   100   h a

                         1km2    =100 ha
                         1800ha  =18 km2
                         27000ha =270 km2

1 km                = 10 ha

1800 ha            =  180 km2

27000 ha           = 2700 km 2 

1km2 = 100ha

1800ha = 18km2

27000ha = 270km2

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

\(1ha=10000m^2\)

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

1m2 = 100dm2 = 10000cm2= 1000000mm2

1ha = 10000m2

1km2 = 100ha = 1000000m2

1m2 = 100 dm2 = 10000 cm2 = 1000000 mm2

1ha= 10000 m2

1km2=100 ha = 1000000 m2