Question

How do you write `9.87 times 10^5` in decimal notation?

Answer 1

987000.0

Explanation:

The decimal place stays where it is and the numbers moves to the left 5 times. You have to use zeros as place holders. When people say "put zeros on the end" they are very wrong!!!!!!

Consider `0.25 xx 10`.

If you put a zero on the end you get: `0.250` which is no different in value.

Move the number 1 place to the left however and you get `2.5` which is correct.