Question

How do you write `540, 000` in scientific notation?

Answer 1

`5 times 10^5`

Explanation:

The original number, `540,000`, has to be reduced so that it is less than `10`.

To do this, you have to move the decimal point back five places, so that the number becomes `5 times 10^5`. The exponent is positive, because the original number is greater than `1`.