Witch is greater 400 meters or 1 kilometer?

Answer 1

1 kilometre equals 1000 metres

Hope this helps

metric system works in 10s 100s or 1000s here is a rough overview

10 mm equals 1 centimetre

100 centimetre equals 1 metre also 1000 millimetres equals 1 metre

1000 metres equals a kilometre

the metric system also works on volume as well 1 cubic metre equals 1000 litres

10 cms cubed is 1 litre

Hope this helps