Perform basic workplace calculations convert the following :
1. 1m=____cm
2. 400cm=______m
3. 5km=______m
4. 1km=_______km
5. 2000m=______km
find the area(hectare) of the following.
1. 600m×600m
2. 100m×1000th
3. 200m×300M
4. 300M ×400m
5. 500M ×600m