Question

how do you write 820,000 in scientific notation?
× 10

Explanation:

Step1: Move decimal point

Move the decimal point in 820000 to the left until there is only one non - zero digit to the left of the decimal point. We get 8.2.

Step2: Count decimal places moved

We moved the decimal point 5 places to the left. In scientific notation, a number is written as $a\times10^{n}$, where $1\leq a<10$ and $n$ is an integer. Here, $a = 8.2$ and $n = 5$.

Answer:

$8.2\times10^{5}$