2.30000 square meters = () hectares

3.7 square kilometers = () hectares

4.600 hectares = () square kilometers

5.6 square kilometers = () hectares = () square meters

6.18 million square meters = () hectares () = square kilometers

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6 hectares ○ 3200m2

400 hectares 0.4 square kilometers

3 square kilometers and 303 hectares

6,000 square meters and 6 hectares

3. A car park, 250 meters long and 80 meters wide. How many hectares does it cover?

4. Square wheat field with a circumference of 3,600 meters. How many hectares is this wheat field?

5. A rectangular paddy field covering an area of 4 hectares is 800 meters long. What's its width?

6. Red Star Farm has a square experimental field with a side length of 400 meters. A * * * produces 96,000 kilograms of wheat. How many kilograms of wheat is produced on average per hectare?

7. Uncle Wang fertilizes the fruit trees, fertilizing 250 kilograms per hectare. How many kilograms should he fertilize a rectangular orchard with a length of 400 meters and a width of 250 meters?

Eight, a square piece of land, the circumference of 2400 meters, if you farm 6 hectares of farmland every day, how many days can you farm?

9. It takes 6 days to transplant a paddy field of 12 hectare. At the same speed, how many days does it take to transplant a paddy field of 10 hectare?