Which reason best describes why you can divide any number by 1,000 by moving the decimal point three places to the left

The best reason is that number of zeros will make that many number places to the left.

Step-by-step explanation:

Examples

1.

2.

3.  

4.  

You can apply it for 100 as well as for 10000

i.e

Number of zeros will make that many number places to the left.