Answer:
Divide by 1000.
Explanation:
It's true there are 1000 g in 1 kg. That means you have 1 kg for every 1000 g.
Example: 2000 g = 2 kg. (Divide 2000 by 1000.)
Example: 4715 g = 4.745 kg (Divide a decimal by 1000 by shifting the decimal point 3 places to the left.)