How do you write $204,500$ in scientific notation?

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Answer 1 · 2016-07-28T22:57:24

$204,500 = 2.045 xx 10^5$

$100,000$ is the 5th power of 10 which can be written as:

$100,000 = 10^5$

$200,000 = 2 xx 10^5$

We have a bit more than exactly $200,000$

$204,500 = 2.045 xx 10^5$

In standard form (also called scientific notation), there is always only ONE digit before the decimal point.

How do you write 204,500204,500 in scientific notation?