Question

how do you write 680 in scientific notation?

× 10

Explanation:

Step1: Rewrite number as decimal

Move the decimal point in 680 to get a number between 1 and 10. So, 680 becomes 6.8.
$680 = 6.8\times100$

Step2: Express 100 as power of 10

Since $100 = 10^2$, then $680=6.8\times10^2$.

Answer:

$6.8\times10^2$